| Inbound Relationships |
Type |
Active |
Source |
Characteristic |
Refinability |
Group |
| Spinocerebellar ataxia type 21 (SCA21) is a very rare subtype of type I autosomal dominant cerebellar ataxia. It is characterized by slowly progressive cerebellar ataxia, mild cognitive impairment, postural and/or resting tremor, bradykinesia, and rigidity. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare neurologic disease that is characterized by the early onset of cerebellar signs, eye movement abnormalities and pyramidal signs. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 12 (SCA12) is a very rare subtype of type I autosomal dominant cerebellar ataxia. It is characterized by the presence of action tremor associated with relatively mild cerebellar ataxia. Associated pyramidal and extrapyramidal signs and dementia have been reported. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 13 (SCA13) is a very rare subtype of type I autosomal dominant cerebellar ataxia. It is characterized by onset in childhood marked by delayed motor and cognitive development followed by mild progression of cerebellar ataxia. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 14 (SCA14) is a rare mild subtype of type I autosomal dominant cerebellar ataxia. It is characterized by slowly progressive ataxia, dysarthria and nystagmus. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 17 (SCA17) is a rare subtype of type I autosomal dominant cerebellar ataxia. It is characterized by a variable clinical picture which can include dementia, psychiatric disorders, parkinsonism, dystonia, chorea, spasticity, and epilepsy. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 18 (SCA18) is a very rare subtype of type I autosomal dominant cerebellar ataxia. It is characterized by sensory neuropathy and cerebellar ataxia. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 19 (SCA19) is a very rare subtype of type I autosomal dominant cerebellar ataxia. It is characterized by mild cerebellar ataxia, cognitive impairment, low scores on the Wisconsin Card Sorting Test measuring executive function, myoclonus, and postural tremor. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 27 (SCA27) is a very rare subtype of type I autosomal dominant cerebellar ataxia. It is characterized by early onset tremor, dyskinesia, and slowly progressive cerebellar ataxia. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| An autosomal dominant cerebellar ataxia type III that is characterized by a slowly progressive and relatively pure ataxia. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| An autosomal dominant cerebellar ataxia type 1 that is characterized by ataxia and cognitive impairment. Azoospermia is a typical feature in affected males. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| An autosomal dominant cerebellar ataxia type I that is characterized by papulosquamous, ichthyosiform plaques on the limbs appearing shortly after birth and later manifestations including progressive ataxia, dysarthria, nystagmus and decreased reflexes. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
4 |
| An autosomal dominant cerebellar ataxia type 1 that is characterized by the adult-onset of progressive gait and limb ataxia, dysarthria, ocular dysmetria, intention tremor of hands, hyperreflexia and spasmodic torticollis. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| An autosomal dominant cerebellar ataxia type 1 that is characterized by a cerebellar syndrome along with altered vertical eye movements. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| An autosomal dominant cerebellar ataxia type III that is characterized by the early onset of cerebellar signs with eye movement abnormalities and a very slow disease progression. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare syndromic, inherited form of sideroblastic anemia characterized by mild to moderate anemia (with hypochromia and microcytosis) and early-onset, non- or slowly progressive spinocerebellar ataxia. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
5 |
| X-linked spinocerebellar ataxia type 3 is a form of spinocerebellar degeneration characterized by onset in infancy of hypotonia, ataxia, sensorineural deafness, developmental delay, esotropia, and optic atrophy, and by a progressive course leading to death in childhood. It has been described in one family with at least six affected males from five different sibships (connected through carrier females). It is transmitted as an X-linked recessive trait. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare X-linked spinocerebellar ataxia characterized by ataxia, pyramidal tract signs and adult-onset dementia. The disease manifests during early childhood with delayed walking and tremor. The pyramidal signs appear progressively and by adulthood memory problems and dementia gradually become apparent. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Simian B encephalomyelitis |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare genetic neurological disorder characterized by infantile to childhood onset of progressive sensory neuropathy in association with spastic paraplegia and mutilating acropathy. Patients present lower limb spasticity and progressive severe sensory loss leading to chronic ulcerations in both upper and lower limbs. Electrophysiological studies are consistent with axonal sensory neuropathy, and nerve biopsy shows axonopathy with loss of myelinated nerve fibers of all diameters as well as of unmyelinated axons. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
6 |
| Myelopathy co-occurrent and due to spinal stenosis of thoracic region (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Encephalomyelitis caused by lymphocytic choriomeningitis virus (disorder) |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Abscess of spinal cord caused by bacterium (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare, genetic, developmental defect during embryogenesis disorder characterized by varying degrees of caudal dysgenesis, ranging from a single umbilical artery or imperforate anus to full sirenomelia, in several members of the same family. Phenotype includes lumbosacral agenesis, anal atresia or ectopia, genitourinary abnormalities, components of VATER or VACTERL association, and facial dysmorphism (flat facies, abnormal ears, bilateral epicanthic folds, depressed nasal bridge, micrognathia). Additional features reported include cardiovascular (e.g. endocardial cushion defect, hypoplasia of pulmonary artery) and skeletal (kyphosis, hemipelvis) anomalies. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Myelopathy due to metabolic disorder (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Spinal cord compression due to degenerative disorder of spinal column (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| lésion de la moelle spinale due à une radiothérapie |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Infection of spinal cord caused by Histoplasma (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare, X-linked leukodystrophy characterized primarily by spastic gait and autonomic dysfunction. When additional central nervous system (CNS) signs, such as intellectual deficit, ataxia, or extrapyramidal signs, are present, the syndrome is referred to as complicated SPG. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
5 |
| A complex form of hereditary spastic paraplegia, characterized by an onset in childhood or adulthood of progressive spastic paraplegia (with spastic gait, spasticity, lower limb weakness, pes cavus and urinary urgency) associated with the additional manifestation of peripheral sensorimotor neuropathy. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare form of hereditary spastic paraplegia with high intrafamilial clinical variability, characterized in most cases as a pure phenotype with an adult onset (mainly the 3rd to 5th decade of life, but that can present at any age) of progressive gait impairment due to bilateral lower-limb spasticity and weakness as well as very mild proximal weakness and urinary urgency. In some cases, a complex phenotype is also reported with additional manifestations including cognitive impairment, cerebellar ataxia, epilepsy and neuropathy. A faster disease progression is noted in patients with a later age of onset. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 44 (SPG44) is a very rare, complex form of hereditary spastic paraplegia characterized by a late-onset, slowly progressive spastic paraplegia associated with mild ataxia and dysarthria, upper extremity involvement (i.e. loss of finger dexterity, dysmetria), and mild cognitive impairment, without the presence of nystagmus. A hypomyelinating leukodystrophy and thin corpus callosum is observed in all cases and psychomotor development is normal or near normal. SPG44 is caused by mutations in the GJC2 gene (1q41-q42) encoding the gap junction gamma-2 protein. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 46 (SPG46) is a rare, complex type of hereditary spastic paraplegia characterized by an onset, in infancy or childhood, of the typical signs of spastic paraplegia (i.e. spastic gait and weakness of the lower limbs) associated with a variety of additional manifestations including upper limb spasticity and weakness, pseudobulbar dysarthria, bladder dysfunction, cerebellar ataxia, cataracts, and cognitive impairment that can progress to dementia. Brain imaging may show thinning of the corpus callosum and mild atrophy of the cerebrum and cerebellum. SPG46 is due to mutations in the GBA2 gene (9p13.2) encoding non-lysosomal glucosylceramidase. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 53 (SPG53) is a very rare, complex type of hereditary spastic paraplegia characterized by early-onset spastic paraplegia (with spasticity in the lower extremities that progresses to the upper extremities) associated with developmental and motor delay, mild to moderate cognitive and speech delay, skeletal dysmorphism (e.g. kyphosis and pectus), hypertrichosis and mildly impaired vibration sense. SPG53 is due to mutations in the VPS37A gene (8p22) encoding vacuolar protein sorting-associated protein 37A. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 54 (SPG54) is a rare, complex form of hereditary spastic paraplegia characterized by the onset in early childhood of progressive spastic paraplegia associated with cerebellar signs, short stature, delayed psychomotor development, intellectual disability and, less commonly, foot contractures, dysarthria, dysphagia, strabismus and optic hypoplasia. SPG54 is caused by mutations in the DDHD2 gene (8p11.23) encoding phospholipase DDHD2. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 57 (SPG57) is an extremely rare, complex type of hereditary spastic paraplegia, characterized by onset in infancy of pronounced leg spasticity (leading to the inability to walk independently), reduced visual acuity due to optic atrophy, and distal wasting of the hands and feet due to an axonal demyelinating sensorimotor neuropathy. SPG57 is caused by mutations in the TFG gene (3q12.2) encoding protein TFG, which is thought to play a role in ER microtubular architecture and function. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 55 (SPG 55) is a rare, complex type of hereditary spastic paraplegia characterized by childhood onset of progressive spastic paraplegia associated with optic atrophy (with reduced visual acuity and central scotoma), ophthalmoplegia, reduced upper-extremity strength and dexterity, muscular atrophy in the lower extremities, and sensorimotor neuropathy. SPG55 is caused by mutations in the C12ORF65 gene (12q24.31) encoding probable peptide chain release factor C12orf65, mitochondrial. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Infantile-onset spinocerebellar ataxia (IOSCA) is a hereditary neurological disorder with early and severe involvement of both the peripheral and central nervous systems. It has only been described in Finnish families. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
4 |
| A rare, complex type of hereditary spastic paraplegia characterized by early-onset progressive spastic paraplegia presenting in infancy, associated with optic atrophy, fixation nystagmus, polyneuropathy occurring in late childhood/early adolescence leading to severe motor disability and progressive joint contractures and scoliosis. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
5 |
| Myelopathy due to nutritional deficiency (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Idiopathic syringomyelia (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Syringomyelia and syringobulbia |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| X-linked hereditary spastic paraplegia (disorder) |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
6 |
| Autosomal recessive spastic paraplegia type 32 (SPG32) is a rare, complex type of hereditary spastic paraplegia characterized by a slowly progressive spastic paraplegia (with walking difficulties appearing at onset at 6-7 years of age) associated with mild intellectual disability. Brain imaging reveals thin corpus callosum, cortical and cerebellar atrophy, and pontine dysraphia. The SPG32 phenotype has been mapped to a locus on chromosome 14q12-q21. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 26 (SPG26) is a rare, complex type of hereditary spastic paraplegia characterized by the onset in childhood/adolescence (ages 2-19) of progressive spastic paraplegia associated mainly with mild to moderate cognitive impairment and developmental delay, cerebellar ataxia, dysarthria, and peripheral neuropathy. Less commonly reported manifestations include skeletal abnormalities (i.e. pes cavus, scoliosis), dyskinesia, dystonia, cataracts, cerebellar signs (i.e. saccadic dysfunction, nystagmus, dysmetria), bladder disturbances, and behavioral problems. SPG26 is caused by mutations in the B4GALNT1 gene (12q13.3), encoding Beta-1, 4 N-acetylgalactosaminyltransferase 1. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 23 (SPG23) is a rare, complex type of hereditary spastic paraplegia that presents in childhood with progressive spastic paraplegia, associated with peripheral neuropathy, skin pigment abnormalities (i.e. vitiligo, hyperpigmentation, diffuse lentigines), premature graying of hair, and characteristic facies (i.e. thin with sharp features). The SPG23 phenotype has been mapped to a locus on chromosome 1q24-q32. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 64 is an extremely rare and complex form of hereditary spastic paraplegia, reported in only 4 patients from 2 families to date, characterized by spastic paraplegia (presenting between the ages of 1 to 4 years with abnormal gait) associated with microcephaly, amyotrophy, cerebellar signs (e.g. dysarthria) aggressiveness, delayed puberty and mild to moderate intellectual disability. SPG64 is due to mutations in the ENTPD1 gene (10q24.1), encoding ectonucleoside triphosphate diphosphohydrolase 1. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 63 (SPG63) is an extremely rare and complex form of hereditary spastic paraplegia characterized by an onset in infancy of spastic paraplegia (presenting with delayed walking and a scissors gait) associated with short stature, and normal cognition. Periventricular deep white matter changes in the corpus callosum are noted on brain imaging. SPG63 is caused by a homozygous mutation in the AMPD2 gene (1p13.3) encoding AMP deaminase 2. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 61 (SPG61) is a rare, complex form of hereditary spastic paraplegia characterized by an onset in infancy of spastic paraplegia (presenting with the inability to walk unsupported and a scissors gait) associated with a motor and sensory polyneuropathy with loss of terminal digits and acropathy. SPG61 is due to a mutation in the ARL6IP1 gene (16p12-p11.2) encoding the ADP-ribosylation factor-like protein 6-interacting protein 1. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spastic paraplegia-Paget disease of bone syndrome is an extremely rare, complex form of hereditary spastic paraplegia characterized by a slowly progressive spastic paraplegia (with increased muscle tone, decreased strength in the anterior tibial muscles and hyperreflexia in the lower extremities with Babinski sign) presenting in adulthood, associated with Paget disease of the bone. Cognitive decline, dementia and myopathic changes at muscle biopsy have not been reported. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
4 |
| X-linked hereditary spastic paraplegia (disorder) |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
5 |
| Autosomal spastic paraplegia type 18 (SPG18) is a rare, complex type of hereditary spastic paraplegia characterized by progressive spastic paraplegia (presenting in early childhood) associated with delayed motor development, severe intellectual disability and joint contractures. A thin corpus callosum is equally noted on brain magnetic resonance imaging. SPG18 is caused by a mutation in the ERLIN2 gene (8p11.2) encoding the protein, Erlin-2. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Autosomal recessive spastic paraplegia type 25 (SPG25) is a rare, complex type of hereditary spastic paraplegia characterized by adult-onset spastic paraplegia associated with spinal pain that radiates to the upper or lower limbs and is related to disc herniation (with minor spondylosis), as well as mild sensorimotor neuropathy. The SPG25 phenotype has been mapped to a locus on chromosome 6q23-q24.1. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare, hereditary spastic paraplegia that can present as either a pure or complex phenotype. The pure form is characterized by lower limb spasticity, hyperreflexia and extensor plantar responses, presenting in childhood or adolescence. The complex form is characterized by the association with additional manifestations including peripheral neuropathy with upper limb muscle atrophy, moderate intellectual disability and parkinsonism. Deafness and retinitis pigmentosa have also been reported. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare, pure or complex form of hereditary spastic paraplegia typically characterized by presentation in late adolescence or early adulthood as a pure phenotype of lower limb spasticity with hyperreflexia and extensor plantar responses, as well as mild bladder disturbances and pes cavus. Rarely, it can present as a complex phenotype with additional manifestations including epilepsy, variable peripheral neuropathy and/or memory impairment. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A complex form of hereditary spastic paraplegia characterized by a spastic paraplegia presenting in adolescence, associated with the additional manifestations of sensorial hearing impairment due to auditory neuropathy and persistent vomiting due to a hiatal or paraesophageal hernia. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| A rare hereditary ataxia characterized by unusual facies (i.e. gross, rough and abundant hair, mild palpebral ptosis, thick lips, and down-curved corners of the mouth), dysarthria, delayed psychomotor development, scoliosis, foot deformities, and ataxia. There have been no further descriptions in the literature since 1985. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
6 |
| Spastic paraplegia-precocious puberty syndrome is a complex form of hereditary spastic paraplegia characterized by the onset of progressive spastic paraplegia associated with precocious puberty (due to Leydig cell hyperplasia) in childhood (at the age of 2 years). Moderate intellectual disability was also reported. There have been no further descriptions in the literature since 1983. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spastic paraplegia-glaucoma-intellectual disability syndrome is characterized by progressive spastic paraplegia, glaucoma and intellectual deficit. It has been described in two families. The second described sibship was born to consanguineous parents. The mode of inheritance is autosomal recessive. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
4 |
| Spastic paraplegia-nephritis-deafness syndrome is a complex form of hereditary spastic paraplegia characterized by progressive, variable spastic paraplegia associated with bilateral sensorineural deafness, intellectual disability, and progressive nephropathy. There have been no further descriptions in the literature since 1988. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
8 |
| Spinocerebellar ataxia type 40 (SCA40) is a very rare subtype of autosomal dominant cerebellar ataxia type 1, characterized by the adult-onset of unsteady gait and dysarthria, followed by wide-based gait, gait ataxia, ocular dysmetria, intention tremor, scanning speech, hyperreflexia and dysdiadochokinesis. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spinocerebellar ataxia type 38 (SCA38) is a subtype of autosomal dominant cerebellar ataxia type 3 characterized by the adult-onset (average age: 40 years) of truncal ataxia, gait disturbance and gaze-evoked nystagmus. The disease is slowly progressive with dysarthria and limb ataxia following. Additional manifestations include diplopia and axonal neuropathy. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Spontaneous hematoma of spinal cord (disorder) |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Myelitis caused by Human herpes simplex virus |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Myelomeningocele co-occurrent with hydrocephalus (disorder) |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
7 |
| Myelomeningocele co-occurrent with hydrocephalus (disorder) |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
10 |
| Percutaneous lysis of adhesions of spinal cord and nerve roots (procedure) |
Procedure site - Indirect (attribute) |
True |
Spinal cord structure |
Inferred relationship |
Some |
3 |
| Benign neoplasm of spinal extradural space (disorder) |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Excision of contiguous neoplasm of extradural and intradural space of spine (procedure) |
Procedure site - Direct (attribute) |
False |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Hereditary spastic paraplegia |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Hereditary sensory-motor neuropathy, type V |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Pure hereditary spastic paraplegia |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Complicated hereditary spastic paraplegia |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
2 |
| Infantile ascending hereditary spastic paralysis (disorder) |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Spastic paraplegia type 15 |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A complex hereditary spastic paraplegia characterized by progressive lower limbs weakness and spasticity, upper limbs weakness, dysarthria, hypomimia, sphincter disturbances, peripheral neuropathy, learning difficulties, cognitive impairment and dementia. Magnetic resonance imaging shows thin corpus callosum, cerebral atrophy, and periventricular white matter changes. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A form of hereditary spastic ataxia characterised by an onset usually in adulthood (but ranging from 10-72 years) of progressive bilateral lower limb weakness and spasticity and sometimes predominant cerebellar ataxia. In addition to frequent sphincter dysfunction and decreased vibratory sense at the ankles, manifestations may include optical neuropathy, nystagmus, blepharoptosis, ophthalmoplegia, decreased hearing, scoliosis, pes cavus, motor and sensory neuropathy, muscle atrophy, parkinsonism, and dystonia. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Macrocephaly-spastic paraplegia-dysmorphism syndrome is a rare syndrome of multiple congenital anomalies characterized by macrocephaly (of post-natal onset) with large anterior fontanelle, progressive complex spastic paraplegia, dysmorphic facial features (broad and high forehead, deeply set eyes, short philtrum with thin upper lip, large mouth and prominent incisors), seizures, and intellectual deficit of varying severity. Inheritance appears to be autosomal recessive. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare genetic neurological disorder characterized by infantile to childhood onset of progressive sensory neuropathy in association with spastic paraplegia and mutilating acropathy. Patients present lower limb spasticity and progressive severe sensory loss leading to chronic ulcerations in both upper and lower limbs. Electrophysiological studies are consistent with axonal sensory neuropathy, and nerve biopsy shows axonopathy with loss of myelinated nerve fibers of all diameters as well as of unmyelinated axons. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare autosomal recessive complex spastic paraplegia characterized by upper motor neuron involvement and peripheral neuropathy with an onset between childhood and early adulthood. Patients present with progressive spasticity, hyperreflexia, and distal upper and lower muscle wasting. Reduced cognitive functioning and cerebellar ataxia have also been reported. MR imaging may reveal cerebellar and/or spinal cord atrophy. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare, X-linked leukodystrophy characterized primarily by spastic gait and autonomic dysfunction. When additional central nervous system (CNS) signs, such as intellectual deficit, ataxia, or extrapyramidal signs, are present, the syndrome is referred to as complicated SPG. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A complex form of hereditary spastic paraplegia, characterized by an onset in childhood or adulthood of progressive spastic paraplegia (with spastic gait, spasticity, lower limb weakness, pes cavus and urinary urgency) associated with the additional manifestation of peripheral sensorimotor neuropathy. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare form of hereditary spastic paraplegia with high intrafamilial clinical variability, characterized in most cases as a pure phenotype with an adult onset (mainly the 3rd to 5th decade of life, but that can present at any age) of progressive gait impairment due to bilateral lower-limb spasticity and weakness as well as very mild proximal weakness and urinary urgency. In some cases, a complex phenotype is also reported with additional manifestations including cognitive impairment, cerebellar ataxia, epilepsy and neuropathy. A faster disease progression is noted in patients with a later age of onset. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 44 (SPG44) is a very rare, complex form of hereditary spastic paraplegia characterized by a late-onset, slowly progressive spastic paraplegia associated with mild ataxia and dysarthria, upper extremity involvement (i.e. loss of finger dexterity, dysmetria), and mild cognitive impairment, without the presence of nystagmus. A hypomyelinating leukodystrophy and thin corpus callosum is observed in all cases and psychomotor development is normal or near normal. SPG44 is caused by mutations in the GJC2 gene (1q41-q42) encoding the gap junction gamma-2 protein. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 46 (SPG46) is a rare, complex type of hereditary spastic paraplegia characterized by an onset, in infancy or childhood, of the typical signs of spastic paraplegia (i.e. spastic gait and weakness of the lower limbs) associated with a variety of additional manifestations including upper limb spasticity and weakness, pseudobulbar dysarthria, bladder dysfunction, cerebellar ataxia, cataracts, and cognitive impairment that can progress to dementia. Brain imaging may show thinning of the corpus callosum and mild atrophy of the cerebrum and cerebellum. SPG46 is due to mutations in the GBA2 gene (9p13.2) encoding non-lysosomal glucosylceramidase. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 53 (SPG53) is a very rare, complex type of hereditary spastic paraplegia characterized by early-onset spastic paraplegia (with spasticity in the lower extremities that progresses to the upper extremities) associated with developmental and motor delay, mild to moderate cognitive and speech delay, skeletal dysmorphism (e.g. kyphosis and pectus), hypertrichosis and mildly impaired vibration sense. SPG53 is due to mutations in the VPS37A gene (8p22) encoding vacuolar protein sorting-associated protein 37A. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 54 (SPG54) is a rare, complex form of hereditary spastic paraplegia characterized by the onset in early childhood of progressive spastic paraplegia associated with cerebellar signs, short stature, delayed psychomotor development, intellectual disability and, less commonly, foot contractures, dysarthria, dysphagia, strabismus and optic hypoplasia. SPG54 is caused by mutations in the DDHD2 gene (8p11.23) encoding phospholipase DDHD2. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 55 (SPG 55) is a rare, complex type of hereditary spastic paraplegia characterized by childhood onset of progressive spastic paraplegia associated with optic atrophy (with reduced visual acuity and central scotoma), ophthalmoplegia, reduced upper-extremity strength and dexterity, muscular atrophy in the lower extremities, and sensorimotor neuropathy. SPG55 is caused by mutations in the C12ORF65 gene (12q24.31) encoding probable peptide chain release factor C12orf65, mitochondrial. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 57 (SPG57) is an extremely rare, complex type of hereditary spastic paraplegia, characterized by onset in infancy of pronounced leg spasticity (leading to the inability to walk independently), reduced visual acuity due to optic atrophy, and distal wasting of the hands and feet due to an axonal demyelinating sensorimotor neuropathy. SPG57 is caused by mutations in the TFG gene (3q12.2) encoding protein TFG, which is thought to play a role in ER microtubular architecture and function. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare, complex type of hereditary spastic paraplegia characterized by early-onset progressive spastic paraplegia presenting in infancy, associated with optic atrophy, fixation nystagmus, polyneuropathy occurring in late childhood/early adolescence leading to severe motor disability and progressive joint contractures and scoliosis. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 32 (SPG32) is a rare, complex type of hereditary spastic paraplegia characterized by a slowly progressive spastic paraplegia (with walking difficulties appearing at onset at 6-7 years of age) associated with mild intellectual disability. Brain imaging reveals thin corpus callosum, cortical and cerebellar atrophy, and pontine dysraphia. The SPG32 phenotype has been mapped to a locus on chromosome 14q12-q21. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 26 (SPG26) is a rare, complex type of hereditary spastic paraplegia characterized by the onset in childhood/adolescence (ages 2-19) of progressive spastic paraplegia associated mainly with mild to moderate cognitive impairment and developmental delay, cerebellar ataxia, dysarthria, and peripheral neuropathy. Less commonly reported manifestations include skeletal abnormalities (i.e. pes cavus, scoliosis), dyskinesia, dystonia, cataracts, cerebellar signs (i.e. saccadic dysfunction, nystagmus, dysmetria), bladder disturbances, and behavioral problems. SPG26 is caused by mutations in the B4GALNT1 gene (12q13.3), encoding Beta-1, 4 N-acetylgalactosaminyltransferase 1. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 23 (SPG23) is a rare, complex type of hereditary spastic paraplegia that presents in childhood with progressive spastic paraplegia, associated with peripheral neuropathy, skin pigment abnormalities (i.e. vitiligo, hyperpigmentation, diffuse lentigines), premature graying of hair, and characteristic facies (i.e. thin with sharp features). The SPG23 phenotype has been mapped to a locus on chromosome 1q24-q32. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 64 is an extremely rare and complex form of hereditary spastic paraplegia, reported in only 4 patients from 2 families to date, characterized by spastic paraplegia (presenting between the ages of 1 to 4 years with abnormal gait) associated with microcephaly, amyotrophy, cerebellar signs (e.g. dysarthria) aggressiveness, delayed puberty and mild to moderate intellectual disability. SPG64 is due to mutations in the ENTPD1 gene (10q24.1), encoding ectonucleoside triphosphate diphosphohydrolase 1. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 63 (SPG63) is an extremely rare and complex form of hereditary spastic paraplegia characterized by an onset in infancy of spastic paraplegia (presenting with delayed walking and a scissors gait) associated with short stature, and normal cognition. Periventricular deep white matter changes in the corpus callosum are noted on brain imaging. SPG63 is caused by a homozygous mutation in the AMPD2 gene (1p13.3) encoding AMP deaminase 2. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 61 (SPG61) is a rare, complex form of hereditary spastic paraplegia characterized by an onset in infancy of spastic paraplegia (presenting with the inability to walk unsupported and a scissors gait) associated with a motor and sensory polyneuropathy with loss of terminal digits and acropathy. SPG61 is due to a mutation in the ARL6IP1 gene (16p12-p11.2) encoding the ADP-ribosylation factor-like protein 6-interacting protein 1. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Spastic paraplegia-Paget disease of bone syndrome is an extremely rare, complex form of hereditary spastic paraplegia characterized by a slowly progressive spastic paraplegia (with increased muscle tone, decreased strength in the anterior tibial muscles and hyperreflexia in the lower extremities with Babinski sign) presenting in adulthood, associated with Paget disease of the bone. Cognitive decline, dementia and myopathic changes at muscle biopsy have not been reported. |
Finding site |
False |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal spastic paraplegia type 18 (SPG18) is a rare, complex type of hereditary spastic paraplegia characterized by progressive spastic paraplegia (presenting in early childhood) associated with delayed motor development, severe intellectual disability and joint contractures. A thin corpus callosum is equally noted on brain magnetic resonance imaging. SPG18 is caused by a mutation in the ERLIN2 gene (8p11.2) encoding the protein, Erlin-2. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| Autosomal recessive spastic paraplegia type 25 (SPG25) is a rare, complex type of hereditary spastic paraplegia characterized by adult-onset spastic paraplegia associated with spinal pain that radiates to the upper or lower limbs and is related to disc herniation (with minor spondylosis), as well as mild sensorimotor neuropathy. The SPG25 phenotype has been mapped to a locus on chromosome 6q23-q24.1. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare, hereditary spastic paraplegia that can present as either a pure or complex phenotype. The pure form is characterized by lower limb spasticity, hyperreflexia and extensor plantar responses, presenting in childhood or adolescence. The complex form is characterized by the association with additional manifestations including peripheral neuropathy with upper limb muscle atrophy, moderate intellectual disability and parkinsonism. Deafness and retinitis pigmentosa have also been reported. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
| A rare, pure or complex form of hereditary spastic paraplegia typically characterized by presentation in late adolescence or early adulthood as a pure phenotype of lower limb spasticity with hyperreflexia and extensor plantar responses, as well as mild bladder disturbances and pes cavus. Rarely, it can present as a complex phenotype with additional manifestations including epilepsy, variable peripheral neuropathy and/or memory impairment. |
Finding site |
True |
Spinal cord structure |
Inferred relationship |
Some |
1 |
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