700150001: Congenital leptin deficiency (disorder)

• SNOMED CT Concept\Clinical finding (finding)\...
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Disorder of pituitary gland\Hypopituitarism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Disorder of pituitary gland\Disorder of anterior pituitary\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Limbic disorder\Disorder of hypothalamus (disorder)\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Hypopituitarism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Disorder of anterior pituitary\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Limbic disorder\Disorder of hypothalamus (disorder)\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Body measurement finding\Weight finding\High body weight (finding)\Obese (finding)\Obesity (disorder)\...
• \Obesity due to genetic disease.\Childhood obesity due to genetic disease.\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Body mass index at or above 95th percentile as compared to children of the same age and sex\Childhood obesity due to genetic disease.\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Finding of trunk structure\Finding of abdominopelvic segment of trunk (finding)\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Reproductive system hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Finding of trunk structure\Finding of abdominopelvic segment of trunk (finding)\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Disorder of endocrine gonad\Hypogonadism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Finding of trunk structure\Finding of abdominopelvic segment of trunk (finding)\Urogenital finding\Genital finding\Disorder of endocrine gonad\Hypogonadism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Finding of trunk structure\Finding of abdominopelvic segment of trunk (finding)\Urogenital finding\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Reproductive system hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Finding of trunk structure\Finding of abdominopelvic segment of trunk (finding)\Urogenital finding\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Disorder of endocrine gonad\Hypogonadism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Finding of trunk structure\Disorder of trunk (disorder)\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Reproductive system hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Finding of trunk structure\Disorder of trunk (disorder)\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Disorder of endocrine gonad\Hypogonadism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Disorder of pituitary gland\Hypopituitarism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Disorder of pituitary gland\Disorder of anterior pituitary\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Limbic disorder\Disorder of hypothalamus (disorder)\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Hypopituitarism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Disorder of anterior pituitary\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Limbic disorder\Disorder of hypothalamus (disorder)\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Genetic disease\Obesity due to genetic disease.\Childhood obesity due to genetic disease.\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Genetic disease\Hereditary disease\Hereditary disorder by system\Reproductive system hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Genetic disease\Hereditary disease\Hereditary disorder by system\Hereditary disorder of nervous system\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Genetic disease\Hereditary disease\Hereditary disorder by system\Hereditary disorder of endocrine system (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Genetic disease\Hereditary disease\Autosomal hereditary disorder\Autosomal recessive hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Obesity (disorder)\Obesity due to genetic disease.\Childhood obesity due to genetic disease.\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Obesity (disorder)\Body mass index at or above 95th percentile as compared to children of the same age and sex\Childhood obesity due to genetic disease.\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Hereditary disorder by system\Reproductive system hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Hereditary disorder by system\Hereditary disorder of nervous system\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Hereditary disorder by system\Hereditary disorder of endocrine system (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of endocrine system\Disorder of pituitary gland\Hypopituitarism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of endocrine system\Disorder of pituitary gland\Disorder of anterior pituitary\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of endocrine system\Hereditary disorder of endocrine system (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of endocrine system\Disorder of endocrine gonad\Hypogonadism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Hereditary disorder of nervous system\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Hypopituitarism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Disorder of anterior pituitary\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Limbic disorder\Disorder of hypothalamus (disorder)\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Reproductive system hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of body system\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Disorder of endocrine gonad\Hypogonadism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of trunk (disorder)\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Reproductive system hereditary disorder\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of trunk (disorder)\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system (disorder)\Disorder of reproductive system\Disorder of endocrine gonad\Hypogonadism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Hypopituitarism\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Disorder of pituitary gland\Disorder of anterior pituitary\Hypogonadotropic hypogonadism\Congenital hypogonadotropic hypogonadism (disorder)\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Limbic disorder\Disorder of hypothalamus (disorder)\A rare genetic disease characterized by early-onset severe obesity due to mutations in single genes acting on the development and function of the hypothalamus or the leptin-melanocortin pathway, leading to disruption of energy homeostasis and endocrine dysfunction. Patients present with a body mass index over three standard deviations above normal at less than five years of age, accompanied by a variety of signs and symptoms according to the mutated gene, including hyperphagia, insulin resistance, reduced basal metabolic rate, or hypogonadism, among others.\A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2014. Module: SNOMED CT core

Descriptions:

Id	Description	Lang	Type	Status	Case?	Module
5159426012	A form of monogenic obesity with characteristics of severe early-onset obesity and marked hyperphagia. Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells, and impaired T cell proliferation and cytokine release. Absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
2989311014	Congenital leptin deficiency	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
2989546019	Congenital leptin deficiency (disorder)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
5159491011	Obesity due to congenital leptin deficiency	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
5854961000241116	déficit congénital en leptine	fr	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT Switzerland NRC maintained Module

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