Inbound Relationships |
Type |
Active |
Source |
Characteristic |
Refinability |
Group |
épilepsie partielle continue progressive chronique |
Clinical course |
False |
Progressive |
Inferred relationship |
Some |
1 |
Primary biliary cholangitis |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
5 |
Infantile cerebral and cerebellar atrophy with postnatal progressive microcephaly is a rare, central nervous system malformation syndrome characterized by progressive microcephaly with profound motor delay and intellectual disability, associated with hypertonia, spasticity, clonus, and seizures, with brain imaging revealing severe cerebral and cerebellar atrophy, and poor myelination. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
4 |
Progressive cerebellar ataxia with hypogonadism |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A type of progressive familial intrahepatic cholestasis, this disease is a severe, neonatal, hereditary disorder in bile formation that is hepatocellular in origin and not associated with extrahepatic features. Onset occurs in the neonatal period. Clinical signs of cholestasis usually appear in the first months of life with recurrent or permanent jaundice associated with hepatomegaly and severe pruritus. Patients usually develop fibrosis and end-stage liver disease before adulthood. PFIC2 is due to mutations in the ABCB11 gene (2q24) encoding the bile salt export pump (BSEP) protein resulting in impaired biliary bile acid secretion which leads to decreased bile flow and bile salt accumulation in hepatocytes with ongoing severe hepatocellular damage. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Progressive familial intrahepatic cholestasis (PFIC) refers to a heterogeneous group of autosomal recessive disorders of childhood that disrupt bile formation and present with cholestasis of hepatocellular origin. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
An infantile hereditary disorder of bile formation that is hepatocellular in origin and associated with extrahepatic features. Onset occurs mostly during infancy with clinical signs of cholestasis with recurrent or permanent jaundice associated with hepatomegaly and severe pruritus. Caused by mutations in the ATP8B1 gene (18q21-22) encoding the FIC1 protein expressed at the canalicular membrane of hepatocytes as well as in other epithelia. Transmission is autosomal recessive. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Autosomal dominant progressive external ophthalmoplegia type 4 (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Autosomal dominant progressive external ophthalmoplegia type 1 (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Autosomal dominant progressive external ophthalmoplegia type 2 (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Autosomal dominant progressive external ophthalmoplegia type 5 |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Autosomal dominant progressive external ophthalmoplegia type 3 (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Autosomal recessive Emery-Dreifuss muscular dystrophy |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
X-linked Emery-Dreifuss muscular dystrophy |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare late-onset neurodegenerative disease characterised by ocular motor dysfunction, postural instability, akinesia-rigidity, and cognitive dysfunction. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Atypical progressive supranuclear palsy syndrome |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Progressive supranuclear palsy corticobasal syndrome (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Progressive supranuclear palsy parkinsonism syndrome (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
4 |
Progressive supranuclear palsy progressive non fluent aphasia |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Progressive post haemorrhagic ventricular dilatation |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Camurati-Engelmann disease (CED) is a rare, clinically variable bone dysplasia syndrome characterised by hyperostosis of the long bones, skull, spine and pelvis, associated with severe pain in the extremities, a wide-based waddling gait, joint contractures, muscle weakness and easy fatigability. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
HSD10 disease is a rare, life-threatening neurometabolic disease characterized by a progressive neurodegenerative course, epilepsy, retinopathy and progressive cardiomyopathy. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
A rare genetic neurodegenerative disease characterized by childhood onset of slowly progressive motor and cognitive regression, resulting in intellectual disability and loss of language and ambulation, associated with the appearance of dystonia, parkinsonism, chorea, or rigidity. Ataxia, dysarthria, and seizures have also been reported. Head circumference percentiles may decline over time. Brain imaging shows progressive cerebral and cerebellar atrophy, in some patients also thinning of the corpus callosum. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare, genetic neurological disorder characterized by early-onset severe global developmental delay with regression, congenital or acquired microcephaly, hearing loss, truncal hypotonia, appendicular spasticity, and dystonia and/or myoclonus. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
4 |
A rare genetic neurodegenerative disease characterized by sudden onset of progressive motor deterioration and regression of developmental milestones. Manifestations include dystonia and muscle spasms, dysphagia, dysarthria, and eventually loss of speech and ambulation. Brain MRI shows predominantly striatal abnormalities. The disease is potentially associated with a fatal outcome. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare autosomal dominant hereditary axonal motor and sensory neuropathy characterized by adult onset of slowly progressive distal muscle weakness and atrophy, sensory impairment, and hyporeflexia beginning in the lower limbs. Progressive gait disturbance may lead to loss of independent ambulation in some patients at a higher age. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare genetic neurodegenerative disease characterized by neonatal to infantile onset of hypotonia, developmental delay, regression of motor skills with distal amyotrophy, ataxia, and spasticity, absent speech or dysarthria, and moderate to severe cognitive impairment. Optic atrophy may also be associated. Brain imaging shows cerebellar atrophy and thin corpus callosum, as well as brain iron accumulation in the pallidum and substantia nigra beginning during the second decade of life. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare complex hereditary spastic paraplegia characterized by neonatal to infantile onset of progressive spasticity in the lower limbs, hyperreflexia, tip-toe walking, pes equinus, and delayed motor developmental milestones. Kyphoscoliosis becomes evident in older patients, and most patients show atrophy of the lateral aspects of the tongue. Additional signs may include intellectual disability, language impairment, and moderate upper limb involvement. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
4 |
A rare genetic skeletal muscle disease characterized by neonatal to childhood onset of slowly progressive muscle weakness and atrophy primarily affecting the lower limbs, joint contractures, kyphosis or lordosis of the spine, lateral tongue atrophy, and pes equinus. Progression to upper limb involvement, facial weakness, language impairment, intellectual disability, and behavioral abnormalities have been reported in addition. Muscle biopsy shows myopathic changes with increased fiber size variation, internalized nuclei, fiber atrophy, as well as rod structures and core targetoid defects. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
A rare genetic disease characterised by progressive and severe sensorineural hearing loss with onset in the first decade of life, associated with mild thrombocytopenia, often with enlarged platelets. Most patients do not show significant bleeding tendency. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
4 |
Autosomal recessive spastic paraplegia type 76 is a rare, complex hereditary spastic paraplegia characterized by adult onset slowly progressive, mild to moderate lower limb spasticity and hyperreflexia, resulting in gait disturbances, commonly associated with upper limb hyperreflexia and dysarthria. Foot deformities (usually pes cavus) and extensor plantar responses are also frequent. Additional features may include ataxia, lower limb weakness/amyotrophy, abnormal bladder function, distal sensory loss and mild intellectual deterioration. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
A rare, genetic retinal disorder characterized by bilateral iris coloboma, progressive retinal dystrophy and marked loss of vision, with or without congenital cataracts. Iridolenticular adhesions, scattered retinal pigmented epithelia mottling, and mild hypermetropic astigmatism may be associated. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
4 |
A rare autosomal dominant hereditary axonal motor and sensory neuropathy characterized by childhood onset of slowly progressive distal muscle weakness and atrophy primarily affecting the lower limbs, associated with sensory impairment and ataxia presenting with an unsteady, broad-based gait and frequent falls. Additional signs include decreased deep tendon reflexes and hand tremor. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare congenital muscular dystrophy characterized by neonatal hypotonia, life-threatening respiratory failure, and feeding difficulties, furthermore by delayed motor development, severe muscle weakness predominantly affecting axial muscles (leading to poor head control, rigid cervical spine, and severe scoliosis), generalized joint laxity with no or mild contractures, as well as dry skin with follicular hyperkeratosis. Serum creatine kinase is normal or slightly elevated. Muscle biopsy shows fiber size variability, rounded fibers with mild increase of endomysial connective tissue and adipose replacement, abundant minicore lesions, increase of centrally located nuclei, angular fibers, and cap lesions. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare autosomal recessive distal myopathy characterized by slowly progressive diffuse muscle weakness in childhood, followed by predominantly distal muscle weakness in adolescence, and quadriceps muscle weakness in the fourth decade. Facial muscle weakness is commonly reported. Muscle biopsy shows fiber size variation, increased internal nuclei, fiber splitting, rimmed vacuoles, and focal endomysial fibrosis. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Global developmental delay-visual anomalies-progressive cerebellar atrophy-truncal hypotonia syndrome is a rare, genetic, neurological disorder characterized by mild to severe developmental delay and speech impairment, truncal hypotonia, abnormalities of vision (including cortical visual impairment and abnormal visual-evoked potentials), progressive brain atrophy mainly affecting the cerebellum, and shortened or atrophic corpus callosum. Other clinical findings may include increased muscle tone in the extremities, dystonic posturing, hyporeflexia, scoliosis, postnatal microcephaly and variable facial dysmorphism (e.g. deep-set eyes, gingival hyperplasia, short philtrum and retrognathia). |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare autosomal recessive limb-girdle muscular dystrophy characterized by adult onset of progressive muscle weakness and atrophy in the proximal upper and lower limbs, leading to scapular winging and loss of independent ambulation. Respiratory function may become impaired in the course of the disease. Fatty degeneration of internal regions of thigh muscles sparing external areas has been reported, as well as a reduction of alpha-dystroglycan in muscle biopsies. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare syndromic genetic deafness characterized by profound congenital bilateral sensorineural deafness, developmental delay, moderate intellectual disability, generalized delay in bone maturation, short stature, epiphyseal dysplasia particularly of the capital femoral epiphyses, and mild dysmorphic facial features such as prominent forehead and small, pointed chin. Bilateral obstruction of lacrimal ducts and inguinal and umbilical hernias have also been described. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
5 |
A rare, genetic, syndromic intellectual disability characterized by severe intellectual disability, non-inherited, progressive, post-natal microcephaly, hypotonia, hyperkinesia, absence of speech, strabismus, and midline stereotypic hand movements (e.g. hand washing/rubbing). Additional features include developmental delay, seizures and behavioral disturbances, such as self-injury and unexplained crying episodes. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome is a rare, genetic, neuro-ophthalmological syndrome characterized by post-natal, progressive microcephaly and early-onset seizures, associated with delayed global development, bilateral cortical visual impairment and moderate to severe intellectual disability. Additional manifestations include short stature, generalized hypotonia and pulmonary complications, such as recurrent respiratory infections and bronchiectasis. Auditory and metabolic screenings are normal. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by moderate intellectual disability, dysmorphic facial features (such as prominent glabella, synophrys, and prognathism), generalized hirsutism, bilateral single palmar creases, and seizures. Additional reported manifestations include slowly progressive neurological deterioration with muscular weakness and impaired gait and balance, as well as hypogammaglobulinemia with specific absence of plasma and/or secretory IgA, among others. Brain imaging may show mild cerebellar atrophy and thin corpus callosum. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare genetic cerebral small vessel disease characterized by recurrent ischemic strokes, often with a predilection for the pons, with typical onset in the fourth or fifth decade of life. Patients present progressive cognitive and motor impairment with pyramidal, bulbar, and cerebellar symptoms, among others. Brain imaging shows multiple lacunar infarcts, typically with involvement of the pons, as well as variable leukoencephalopathy of the cerebral hemispheres. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Myotonic dystrophy (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare myotonic dystrophy of juvenile or adult-onset characterized by mild and fluctuating myotonia, muscle weakness, and rarely cardiac conduction disorders. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Congenital myotonic dystrophy |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare subtype of autosomal recessive limb-girdle muscular dystrophy characterized by atrioventricular block resulting in repeated syncope episodes, elevated creatine kinase serum levels and adult-onset of slowly progressive proximal limb skeletal muscle weakness and atrophy. Muscular dystrophic changes observed in muscle biopsy include diameter variability, increased central nuclei, and presence of necrotic and regenerating fibers. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
LIMS2-related limb girdle muscular dystrophy |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare temporomandibular joint anomaly characterized by progressive, asymmetrical, non-neoplastic overgrowth of a mandibular condyle. It is unilateral in most cases and leads to progressive facial asymmetry, mandibular deviation, articular dysfunction, and dental malocclusion. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Progressive familial intrahepatic cholestasis type 3 |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
A rare genetic disease characterized by onset of neurological deterioration in the first two years of life, progressing to severe intellectual disability, profound ataxia, mild dyskinesia, axial hypotonia, camptocormia, and oculomotor apraxia. Some patients also develop nephropathy with features of tubulointerstitial nephritis, hypertension, and a tendency for hyperkalemia. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A rare, neurodegenerative disease characterized by progressive dementia and ataxia, widespread cerebral amyloid angiopathy and parenchymal amyloid deposition. Two subtypes have been identified, ABri amyloidosis and ADan amyloidosis. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
4 |
Progressive nodular histiocytosis is a rare, normolipemic, non-Langerhans cell histiocytosis characterized by progressive growth of multiple to disseminated, asymptomatic skin lesions that range in appearance from yellow plaques to coalescence-prone red-brown papules, nodules and pedunculated tumors up to 5 cm in size, located typically on the face, trunk and extremities (and rarely on conjunctiva and mucous membranes). Characteristic microscopic findings include a storiform spindle cell infiltrate in the deep dermis with xanthomatous macrophages and some Touton cells in the upper dermis. It is usually not associated with systemic disease. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Autosomal recessive spastic paraplegia type 74 is a rare, genetic, spastic paraplegia-optic atrophy-neuropathy-related (SPOAN-like) disorder characterized by childhood onset of mild to moderate spastic paraparesis which manifests with gait impairment that very slowly progresses into late adulthood, hyperactive patellar reflex and bilateral extensor plantar response, in association with optic atrophy and typical symptoms of peripheral neuropathy, including reduced or absent ankle reflexes, lower limb atrophy and distal sensory impairment. Reduced visual acuity and pes cavus are frequently reported. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
A progressive muscular dystrophy characterized by co-existence of limb-girdle weakness and diffuse joint contractures without cardiomyopathy. Patients present lower limb weakness progressing to involve also upper limbs and axial muscles and eventually leading to permanent loss of ambulation, widespread joint contractures in the limbs and sometimes the spine, and variable respiratory involvement. Morphological changes in muscle biopsies include rimmed vacuoles, increased internal nuclei, cytoplasmic bodies, and a dystrophic pattern. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Spastic paraplegia-severe developmental delay-epilepsy syndrome is a rare, genetic, complex spastic paraplegia disorder characterized by an infantile-onset of psychomotor developmental delay with severe intellectual disability and poor speech acquisition, associated with seizures (mostly myoclonic), muscular hypotonia which may be noted at birth, and slowly progressive spasticity in the lower limbs leading to severe gait disturbances. Ocular abnormalities and incontinence are commonly associated. Other symptoms may include verbal dyspraxia, hypogenitalism, macrocephaly and sensorineural hearing loss, as well as dystonic movements and ataxia with upper limb involvement. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
1 |
Autosomal dominant hereditary spastic paraplegia |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
X-linked hereditary spastic paraplegia (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Autosomal recessive hereditary spastic paraplegia |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Pure hereditary spastic paraplegia |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Complicated hereditary spastic paraplegia |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A complex hereditary spastic paraplegia characterised by progressive spastic paraplegia, upper and lower limb muscle atrophy, hyperreflexia, extensor plantar responses, pes cavus and occasionally impaired vibration sense. Association with hand muscles amyotrophy is typical. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
5 |
Allan-Herndon-Dudley syndrome |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
7 |
Infantile ascending hereditary spastic paralysis (disorder) |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare, complex subtype of hereditary spastic paraplegia characterized by variable onset of slowly progressive lower limb spasticity and weakness and prominent cerebellar ataxia, associated with gait disturbances, dysarthria, increased deep tendon reflexes and extensor plantar responses. Additional features may include involuntary movements (i.e. clonus, tremor, fasciculations, chorea), decreased vibration sense, oculomotor abnormalities (e.g. nystagmus) and distal amyotrophy in the upper and lower limbs. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Autosomal recessive spastic paraplegia type 70 is a very rare, complex subtype of hereditary spastic paraplegia that presents in infancy with delayed motor development (i.e. crawling, walking) and is characterized by lower limb spasticity, increased deep tendon reflexes, extensor plantar responses, impaired vibratory sensation at ankles, amyotrophy and borderline intellectual disability. Additional signs may include gait disturbances, Achilles tendon contractures, scoliosis and cerebellar abnormalities. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare type of hereditary spastic paraplegia usually characterized by a pure phenotype of proximal weakness of the lower extremities with spastic gait and brisk reflexes, with a bimodal age of onset of either childhood or adulthood (>30 years). In some cases, it can present as a complex phenotype with additional associated manifestations including peripheral neuropathy, bulbar palsy (with dysarthria and dysphagia), distal amyotrophy, and impaired distal vibration sense. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A pure form of hereditary spastic paraplegia characterized by onset in adolescence or early adulthood of slowly progressive spastic paraplegia, proximal muscle weakness of the lower extremities and small hand muscles, hyperreflexia, spastic gait and mild urinary compromise. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A pure form of hereditary spastic paraplegia characterized by slowly progressive spastic paraplegia of lower extremities with an age of onset ranging from childhood to adulthood and patients presenting with spastic gait, increased tendon reflexes in lower limbs, extensor plantar response, weakness and atrophy of lower limb muscles and, in rare cases, pes cavus. No abnormalities are noted on magnetic resonance imaging. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare, pure or complex form of hereditary spastic paraplegia usually characterized by a pure phenotype of a slowly progressive spastic paraplegia associated with urinary incontinence with an onset in mid- to late-adulthood. A complex phenotype, with the additional findings of cognitive impairment, sensorimotor polyneuropathy, ataxia, parkinsonism, and dystonia as well as thin corpus callosum and white matter lesions (seen on brain and spine magnetic resonance imaging), has also been reported. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A pure form of hereditary spastic paraplegia characterized by a childhood- to adulthood-onset of slowly progressive spastic gait, extensor plantar responses, brisk tendon reflexes in arms and legs, decreased vibration sense at ankles and urinary dysfunction. Ankle clonus is also reported in some patients. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
X-linked spastic paraplegia type 34 is a pure form of hereditary spastic paraplegia characterized by late childhood- to early adulthood-onset of slowly progressive spastic paraplegia with spastic gait and lower limb hyperreflexia, brisk tendon reflexes and ankle clonus. Lower limb pain and reduced lower limb vibratory sense is also reported in some older adult patients. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Autosomal recessive spastic paraplegia type 5A is a form of hereditary spastic paraplegia characterized by either a pure phenotype of slowly progressive spastic paraplegia of the lower extremities with bladder dysfunction and pes cavus or a complex presentation with additional manifestations including cerebellar signs, nystagmus, distal or generalized muscle atrophy and cognitive impairment. Age of onset is highly variable, ranging from early childhood to adulthood. White matter hyperintensity and cerebellar and spinal cord atrophy may be noted, on brain magnetic resonance imaging, in some patients. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A pure form of hereditary spastic paraplegia characterized by a childhood- to adulthood-onset of slowly progressive lower limb spasticity and hyperreflexia of lower extremities, extensor plantar reflexes, distal sensory impairment, variable urinary dysfunction and pes cavus. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A pure form of hereditary spastic paraplegia characterized by a slowly progressive and relatively benign spastic paraplegia presenting in adulthood with spastic gait, lower limb hyperreflexia, extensor plantar responses, bladder dysfunction (urinary urgency and/or incontinence), and mild sensory and motor peripheral neuropathy. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Autosomal recessive spastic paraplegia type 28 is a pure form of hereditary spastic paraplegia characterized by a childhood or adolescent onset of slowly progressive, pure crural muscle spastic paraparesis which manifests with mild lower limb weakness, gait difficulties, extensor plantar responses, and hyperreflexia of lower extremities. Less common manifestations include cerebellar oculomotor disturbance with saccadic eye pursuit, pes cavus and scoliosis. Some patients also present pin and vibration sensory loss in distal legs. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare, pure or complex form of hereditary spastic paraplegia characterized by either a pure spastic paraplegia phenotype, usually presenting in the first or second decade of life, with spastic lower extremities, unsteady spastic gait, hyperreflexia and extensor plantar responses, or as a complicated phenotype with the additional manifestations of distal wasting, saccadic ocular movements, mild cerebellar ataxia and mild, distal, axonal neuropathy. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
A complex form of hereditary spastic paraplegia characterized by spastic paraplegia, demyelinating peripheral sensorimotor neuropathy, poikiloderma (manifesting with loss of eyebrows and eyelashes in childhood in addition to delicate, smooth, and wasted skin) and distal amyotrophy (presenting after puberty). There have been no further descriptions in the literature since 1992. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A complex form of hereditary spastic paraplegia characterized by delays in motor development followed by a slowly progressive spastic paraplegia (affecting mainly lower extremities) associated with a desquamating facial rash with butterfly distribution (presenting at around two months of age) and dysarthria. There have been no further descriptions in the literature since 1982. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Autosomal recessive spastic paraplegia type 15 is a complex form of hereditary spastic paraplegia characterized by a childhood to adulthood onset of slowly progressive lower limb spasticity (resulting in gait disturbance, extensor plantar responses and decreased vibration sense) associated with mild intellectual disability, mild cerebellar ataxia, peripheral neuropathy (with distal upper limb amyotrophy) and retinal degeneration. Thin corpus callosum is a common imaging finding. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Autosomal recessive spastic paraplegia type 35 is a rare form of hereditary spastic paraplegia characterized by childhood (exceptionally adolescent) onset of a complex phenotype presenting with lower limb (followed by upper limb) spasticity with hyperreflexia and extensor plantar responses, with additional manifestations including progressive dysarthria, dystonia, mild cognitive decline, extrapyramidal features, optic atrophy and seizures. White matter abnormalities and brain iron accumulation have also been observed on brain magnetic resonance imaging. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Autosomal recessive spastic paraplegia type 21 is a complex type of hereditary spastic paraplegia characterized by an onset in adolescence or adulthood of slowly progressive spastic paraparesis associated with the additional manifestations of apraxia, cognitive and speech decline (leading to dementia and akinetic mutism in some cases), personality disturbances and extrapyramidal (e.g. oromandibular dyskinesia, rigidity) and cerebellar (i.e. dysdiadochokinesia and incoordination) signs. Subtle abnormalities (e.g. developmental delays) may be noted earlier in childhood. A thin corpus callosum and white matter abnormalities are equally reported on magnetic resonance imaging. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Autosomal recessive spastic paraplegia type 43 is a rare, complex hereditary spastic paraplegia characterized by a childhood to adolescent onset of progressive lower limb spasticity, associated with mild to severe gait disturbances, extensor plantar responses, muscle weakness and severe distal atrophy, frequently with upper limb involvement. Additional features may include joint contractures, distal sensory loss and brisk or absent deep tendon reflexes. Other signs, such as depression, memory loss, optic atrophy (with vision loss) and brain iron deposition (revealed by brain imagery), have also been reported. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A pure or complex form of hereditary spastic paraplegia characterized by an onset in the first decade of life of spastic paraparesis (more prominent in lower than upper extremities) and unsteady gait, as well as increased deep tendon reflexes, amyotrophy, cerebellar ataxia, and flexion contractures of the knees, in some. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Autosomal recessive spastic paraplegia type 45 is a rare, pure or complex form of hereditary spastic paraplegia characterized by onset in infancy of progressive lower limb spasticity, abnormal gait, increased deep tendon reflexes and extensor plantar responses, that may be associated with intellectual disability. Additional signs, such as contractures in the lower limbs, amyotrophy, clubfoot and optic atrophy, have also been reported. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
Autosomal recessive spastic paraplegia type 67 is an extremely rare, complex hereditary spastic paraplegia characterized by an infancy or childhood onset of global developmental delay and progressive spasticity with tremor in the distal limbs, increased deep tendon reflexes and extensor plantar responses, which may be associated with mild intellectual disability. Additional features include muscle wasting and cerebellar abnormalities. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
A rare, complex hereditary spastic paraplegia characterized by an early onset of progressive lower limb spasticity, tip-toe walking, scissor gait, hyperreflexia and clonus that may be associated with borderline intellectual disability. Nystagmus and pes equinovarus have also been reported. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
Hereditary spastic paraplegia |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
2 |
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. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
6 |
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. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
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. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
6 |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
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. |
Clinical course |
True |
Progressive |
Inferred relationship |
Some |
3 |