Ataxia, and Diarrhea

Low match FAMILIAL LIPOPROTEIN LIPASE DEFICIENCY

Chylomicron retention disease is an autosomal recessive disorder of severe fat malabsorption associated with failure to thrive in infancy (Dannoura et al., 1999).

FAMILIAL LIPOPROTEIN LIPASE DEFICIENCY Is also known as lpl deficiency|anderson disease|andd|lipid transport defect of intestine|hypobetalipoproteinemia with accumulation of apolipoprotein b-like protein in intestinal cells

• Intellectual disability
• Ataxia
• Growth delay
• Failure to thrive
• Peripheral neuropathy

SOURCES: ORPHANET OMIM MENDELIAN

Low match FAMILIAL ACUTE NECROTIZING ENCEPHALOPATHY

Familial acute necrotizing encephalopathy or ADANE is a potentially fatal neurological disease characterised by neuropathological lesions principally involving the brainstem, thalamus and putamen.

FAMILIAL ACUTE NECROTIZING ENCEPHALOPATHY Is also known as adane|recurrent acute necrotizing encephalopathy|ane|encephalopathy, acute necrotizing, susceptibility to

• Intellectual disability
• Seizures
• Generalized hypotonia
• Ataxia
• Spasticity

SOURCES: OMIM ORPHANET MENDELIAN

Low match ABETALIPOPROTEINEMIA

Abetalipoproteinemia/ homozygous familial hypobetalipoproteinemia (ABL/HoFHBL) is a severe form of familial hypobetalipoproteinemia (see this term) characterized by permanently low levels (below the 5th percentile) of apolipoprotein B and LDL cholesterol, and by growth delay, malabsorption, hepatomegaly, and neurological and neuromuscular manifestations.

ABETALIPOPROTEINEMIA Is also known as hypobetalipoproteinemia, normotriglyceridemic|fhbl|hypobetalipoproteinemia, familial|acanthocytosis with hypobetalipoproteinemia|homozygous familial hypobetalipoproteinemia|bassen-kornzweig disease

• Global developmental delay
• Ataxia
• Muscular hypotonia
• Anemia
• Visual impairment

SOURCES: ORPHANET OMIM MENDELIAN

Low match ETHYLMALONIC ENCEPHALOPATHY

Ethylmalonic acid encephalopathy (EE) is defined by elevated excretion of ethylmalonic acid (EMA) with recurrent petechiae, orthostatic acrocyanosis and chronic diarrhoea associated with neurodevelopmental delay, psychomotor regression and hypotonia with brain magnetic resonance imaging (MRI) abnormalities.

• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia
• Microcephaly

SOURCES: ORPHANET OMIM MESH MENDELIAN

Low match TRANSCOBALAMIN DEFICIENCY

Transcobalamin deficiency (TC) is a disorder of cobalamin transport that usually presents during the first few months of life and is characterized by megaloblastic anemia, failure to thrive, vomiting, weakness and pancytopenia.

TRANSCOBALAMIN DEFICIENCY Is also known as transcobalamin ii deficiency|inherited deficiency of transcobalamin|tc ii deficiency|tcn2 deficiency

• Intellectual disability
• Generalized hypotonia
• Ataxia
• Failure to thrive
• Muscle weakness

SOURCES: ORPHANET OMIM MENDELIAN

Low match NEUROBLASTOMA

Neuroblastoma is a malignant tumor of neural crest cells, the cells that give rise to the sympathetic nervous system, which is observed in children.

• Ataxia
• Neoplasm
• Failure to thrive
• Pain
• Anemia

SOURCES: ORPHANET OMIM MENDELIAN

Low match CYCLIC VOMITING SYNDROME; CVS

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

SOURCES: OMIM MENDELIAN

Low match GERSTMANN-STRAUSSLER-SCHEINKER SYNDROME

Gerstmann-Straussler-Scheinker syndrome (GSSS) is a particular and rare form of human transmissible spongiform encephalopathy (TSE) due to a defective gene encoding the prion protein (PRNP gene) and marked by particular multicentric amyloid plaques in the brain.

GERSTMANN-STRAUSSLER-SCHEINKER SYNDROME Is also known as gerstmann-straussler-scheinker disease|prion dementia|subacute spongiform encephalopathy, gerstmann-straussler type|encephalopathy, subacute spongiform, gerstmann-straussler type|amyloidosis, cerebral, with spongiform encephalopathy|cerebellar ataxia, pro

• Seizures
• Hearing impairment
• Ataxia
• Nystagmus
• Spasticity

SOURCES: ORPHANET MESH OMIM MENDELIAN

Low match LEUKOENCEPHALOPATHY WITH VANISHING WHITE MATTER; VWM

Vanishing white matter leukodystrophy is an autosomal recessive neurologic disorder characterized by variable neurologic features, including progressive cerebellar ataxia, spasticity, and cognitive impairment associated with white matter lesions on brain imaging. The age at onset can range from early infancy to adulthood. Rapid neurologic deterioration can occur following minor head trauma. Female mutation carriers may develop ovarian failure, manifest as primary amenorrhea or as secondary amenorrhea lasting more than 6 months, associated with elevated gonadotropin levels at age less than 40 years (summary by Van der Knaap et al., 1998 and Schiffmann et al., 1997).

LEUKOENCEPHALOPATHY WITH VANISHING WHITE MATTER; VWM Is also known as cach|cle|childhood ataxia with central nervous system hypomyelinization|cree leukoencephalopathy|vanishing white matter leukodystrophy

• Seizures
• Generalized hypotonia
• Ataxia
• Muscle weakness
• Muscular hypotonia

SOURCES: ORPHANET OMIM MENDELIAN

Low match CHARCOT-MARIE-TOOTH DISEASE, DEMYELINATING, TYPE 1B; CMT1B

Charcot-Marie-Tooth disease is a sensorineural peripheral polyneuropathy. Affecting approximately 1 in 2,500 individuals, Charcot-Marie-Tooth disease is the most common inherited disorder of the peripheral nervous system (Skre, 1974). Autosomal dominant, autosomal recessive, and X-linked forms have been recognized. ClassificationOn the basis of electrophysiologic properties and histopathology, CMT has been divided into primary peripheral demyelinating (type 1, or HMSNI) and primary peripheral axonal (type 2, or HMSNII) neuropathies. The demyelinating neuropathies classified as CMT type 1 are characterized by severely reduced motor NCVs (less than 38 m/s) and segmental demyelination and remyelination with onion bulb formations on nerve biopsy. The axonal neuropathies classified as CMT type 2 are characterized by normal or mildly reduced NCVs and chronic axonal degeneration and regeneration on nerve biopsy (see CMT2A1; {118210}). Distal hereditary motor neuropathy (dHMN) (see {158590}), or spinal CMT, is characterized by exclusive motor involvement and sparing of sensory nerves (Pareyson, 1999).McAlpine (1989) proposed that the forms of CMT with very slow nerve conduction be given the gene symbol CMT1A (OMIM ) and CMT1B, CMT1A being the gene on chromosome 17 and CMT1B being the gene on chromosome 1. CMT2 was the proposed symbol for the autosomal locus responsible for the moderately slow nerve conduction form of the disease (axonal).For a phenotypic description and discussion of genetic heterogeneity of the various subtypes of CMT, see CMTX1 (OMIM ), CMT2A1 (OMIM ), CMT3 (DSS ), CMT4A (OMIM ), and CMTDIB (OMIM ). Genetic Heterogeneity of Autosomal Dominant Demyelinating CMT1Autosomal dominant demyelinating CMT1 is genetically heterogeneous disorder and can be caused by mutations in different genes (see CMT1A, {118220}; CMT1C, {601098}; CMT1D, {607678}), CMT1E (OMIM ), and CMT1F (OMIM ). See also {608236} for a related phenotype characterized by isolated slowed nerve conduction velocities (NCVs).

CHARCOT-MARIE-TOOTH DISEASE, DEMYELINATING, TYPE 1B; CMT1B Is also known as hmsn1b|charcot-marie-tooth neuropathy, type 1b|charcot-marie-tooth disease, autosomal dominant, with focally folded myelin sheaths, type 1b|hereditary motor and sensory neuropathy ib|hereditary motor and sensory neuropathy i|hmsn i|peroneal muscular atrop

• Hearing impairment
• Ataxia
• Muscle weakness
• Pain
• Peripheral neuropathy

SOURCES: OMIM MENDELIAN