Ataxia, and Obesity

• Intellectual disability
• Global developmental delay
• Generalized hypotonia
• Ataxia
• Muscular hypotonia

SOURCES: MESH OMIM MENDELIAN

Autosomal dominant spastic paraplegia type 3 is a rare, pure or complex subtype of hereditary spastic paraplegia, with highly variable phenotype, typically characterized by childhood-onset of minimally progressive, bilateral, mainly symmetric lower limb spasticity and weakness, associated with pes cavus, diminished vibration sense, sphincter disturbances and/or urinary bladder hyperactivity. Additional associated manifestations may include scoliosis, mild intellectual disability, optic atrophy, axonal motor neuropathy and/or distal amyotrophy.

AUTOSOMAL DOMINANT SPASTIC PARAPLEGIA TYPE 3 Is also known as strÜmpell disease

• Global developmental delay
• Ataxia
• Growth delay
• Cataract
• Cognitive impairment

SOURCES: ORPHANET OMIM MENDELIAN

Combined oxidative phosphorylation defect type 15 is a rare mitochondrial disease due to a defect in mitochondrial protein synthesis characterized by onset in infancy or early childhood of muscular hypotonia, gait ataxia, mild bilateral pyramidal tract signs, developmental delay (affecting mostly speech and coordination) and subsequent intellectual disability. Short stature, obesity, microcephaly, strabismus, nystagmus, reduced visual acuity, lactic acidosis, and a brain neuropathology consistent with Leigh syndrome are also reported.

COMBINED OXIDATIVE PHOSPHORYLATION DEFECT TYPE 15 Is also known as coxpd15

• Seizures
• Global developmental delay
• Short stature
• Generalized hypotonia
• Microcephaly

SOURCES: ORPHANET OMIM MENDELIAN

Fatal infantile lactic acidosis with methylmalonic aciduria is a rare neurometabolic disease characterized by infantile onset of severe encephalomyopathy, lactic acidosis and elevated methylmalonic acid urinary excretion. Clinically it manifests with severe psychomotor delay, hypotonia, failure to thrive, feeding difficulties and dystonia. Epilepsy and multiple congenital anomalies may be associated.

FATAL INFANTILE LACTIC ACIDOSIS WITH METHYLMALONIC ACIDURIA Is also known as lactic acidosis, fatal infantile, formerly

• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia
• Hearing impairment

SOURCES: OMIM MESH ORPHANET MENDELIAN

Laurence-Moon syndrome (LMS) is a very rare genetic multisystemic disorder characterized by pituitary dysfunction, ataxia, peripheral neuropathy, spastic paraplegia, and chorioretinal dystrophy.

• Intellectual disability
• Short stature
• Ataxia
• Nystagmus
• Strabismus

SOURCES: ORPHANET MENDELIAN

DORFMAN-CHANARIN DISEASE Is also known as neutral lipid storage disease with ichthyosis|nlsdi

SOURCES: ORPHANET MENDELIAN

Hereditary spastic paraplegia (SPG or HSP) is characterized by progressive weakness and spasticity of the lower limbs due to degeneration of corticospinal axons. SPG11 is a form of complicated SPG, in that it has neurologic features in addition to spasticity.For a discussion of genetic heterogeneity of autosomal recessive SPG, see SPG5A (OMIM ).

AUTOSOMAL RECESSIVE SPASTIC PARAPLEGIA TYPE 11 Is also known as spastic paraplegia-intellectual disability-thin corpus callosum syndrome|nakamura-osame syndrome|spastic paraplegia, autosomal recessive, with mental impairment and thin corpus callosum|spastic paraplegia, autosomal recessive, complicated, with thin corpu

• Intellectual disability
• Seizures
• Global developmental delay
• Ataxia
• Nystagmus

SOURCES: OMIM ORPHANET MENDELIAN

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.

SPASTIC PARAPLEGIA-SEVERE DEVELOPMENTAL DELAY-EPILEPSY SYNDROME Is also known as spastic paraplegia-psychomotor retardation-seizures syndrome|spprs syndrome

• Intellectual disability
• Seizures
• Global developmental delay
• Short stature
• Generalized hypotonia

SOURCES: OMIM ORPHANET MENDELIAN

Kallmann syndrome (KS) is a developmental genetic disorder characterized by the association of congenital hypogonadotropic hypogonadism (CHH) due to gonadotropin-releasing hormone (GnRH) deficiency, and anosmia or hyposmia (with hypoplasia or aplasia of the olfactory bulbs).

KALLMANN SYNDROME Is also known as congenital hypogonadotropic hypogonadism with anosmia|olfacto-genital pathological sequence

• Seizures
• Ataxia
• Nystagmus
• Sensorineural hearing impairment
• Muscle weakness

SOURCES: ORPHANET MENDELIAN

Oliver-McFarlane syndrome is a rare congenital disorder characterized by trichomegaly, severe chorioretinal atrophy and multiple pituitary hormone deficiencies, including growth hormone (GH ), gonadotropins (see {118860}), and thyroid-stimulating hormone (TSH; see {118850}). Thyroid and GH abnormalities may be present at birth and, if untreated, result in intellectual impairment and profound short stature. Congenital hypogonadism occurs in half of patients, and nearly all have documented hypogonadotropic hypogonadism during puberty, with subsequent reproductive dysfunction. Chorioretinal atrophy is typically noted in the first 5 years of life. Half of reported cases have spinocerebellar involvement, including ataxia, spastic paraplegia, and peripheral neuropathy (summary by Hufnagel et al., 2015).Laurence-Moon syndrome (OMIM ) is an allelic disorder with overlapping features.

OLIVER-MCFARLANE SYNDROME; OMCS Is also known as eyelashes, long, with mental retardation|trichomegaly with mental retardation, dwarfism, and pigmentary degeneration of retina

• Intellectual disability
• Short stature
• Ataxia
• Growth delay
• Nystagmus

SOURCES: OMIM MENDELIAN