Ataxia, and Hernia

Hereditary continuous muscle fiber activity is a rare, non-dystrophic myopathy characterized by generalized myokymia and increased muscle tone associated with delayed motor milestones, leg stiffness, spastic gait, hyperreflexia and Babinski sign. Symptoms may be worsened by febrile illness or anesthesia.

• Seizures
• Ataxia
• Dysarthria
• Elevated serum creatine phosphokinase
• Abnormality of movement

SOURCES: ORPHANET MENDELIAN

N-ACETYLASPARTATE DEFICIENCY; NACED Is also known as naa deficiency|hypoacetylaspartia

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

SOURCES: OMIM MENDELIAN

Hereditary hyperekplexia is a hereditary neurological disorder characterized by excessive startle responses.

HEREDITARY HYPEREKPLEXIA Is also known as hereditary hyperexplexia|familial startle disease|kok disease|startle disease, familial|stiff baby syndrome|exaggerated startle reaction|sthe|congenital stiff man syndrome|stiff-baby syndrome|stiff-person syndrome, congenital|startle reaction, exaggerated

• Intellectual disability
• Seizures
• Ataxia
• Spasticity
• Hyperreflexia

SOURCES: OMIM ORPHANET MENDELIAN

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

SOURCES: OMIM MESH MENDELIAN

Acrocallosal syndrome (ACS) is a polymalformative syndrome characterized by agenesis of corpus callosum (CC), distal anomalies of limbs, minor craniofacial anomalies and intellectual deficit.

ACROCALLOSAL SYNDROME Is also known as acs

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

SOURCES: ORPHANET OMIM MENDELIAN

OROFACIODIGITAL SYNDROME XVI; OFD16 Is also known as oral-facial-digital syndrome, type xvi|ofds xvi

• Global developmental delay
• Generalized hypotonia
• Ataxia
• Muscular hypotonia
• Ptosis

SOURCES: OMIM MENDELIAN

X-linked Dandy-Walker malformation with intellectual disability, basal ganglia disease and seizures (XDIBS), or Pettigrew syndrome is a central nervous system malformation characterized by severe intellectual deficit, early hypotonia with progression to spasticity and contractures, choreoathetosis, seizures, dysmorphic face (long face with prominent forehead), and brain imaging abnormalities such as Dandy-Walker malformation (see this term), and iron deposition.

X-LINKED INTELLECTUAL DISABILITY-DANDY-WALKER MALFORMATION-BASAL GANGLIA DISEASE-SEIZURES SYNDROME Is also known as mental retardation, x-linked, with dandy-walker malformation, basal ganglia disease, and seizures|mrxs21|mrx59|mental retardation, x-linked 59|mrxs5|mental retardation, x-linked, syndromic, fried type|mrxsf|mental retardation, x-linked, syndromic 21|menta

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

SOURCES: ORPHANET OMIM MENDELIAN

Galactosialidosis is a lysosomal storage disease characterized by coarse facial features, macular ''cherry red spot'', and dysostosis multiplex. Clinical presentation can be heterogenous ranging from a severe, early-onset, rapidly progressive infantile form to late onset, slowly progressive juvenile/adult form.

GALACTOSIALIDOSIS Is also known as ppca deficiency|lysosomal protective protein deficiency|goldberg syndrome|ngbe|cathepsin a deficiency|protective protein/cathepsin a deficiency|neuraminidase/beta-galactosidase expression|neuraminidase deficiency with beta-galactosidase deficiency

• Intellectual disability
• Seizures
• Short stature
• Hearing impairment
• Ataxia

SOURCES: MESH ORPHANET OMIM MENDELIAN

Sialidosis type 1 (ST-1) is a very rare lysosomal storage disease, and is the normosomatic form of sialidosis (see this term), characterized by gait abnormalities, progressive visual loss, bilateral macular cherry red spots and myoclonic epilepsy and ataxia, that usually presents in the second to third decade of life.

SIALIDOSIS TYPE 1 Is also known as cherry-red spot-myoclonus syndrome|normomorphic sialidosis|lipomucopolysaccharidosis

• Intellectual disability
• Seizures
• Short stature
• Scoliosis
• Ataxia

SOURCES: ORPHANET MENDELIAN

Sialic acid storage diseases are autosomal recessive neurodegenerative disorders that may present as a severe infantile form (ISSD) or as a slowly progressive adult form that is prevalent in Finland (Salla disease). The main symptoms are hypotonia, cerebellar ataxia, and mental retardation; visceromegaly and coarse features are also present in the infantile cases. Progressive cerebellar atrophy and dysmyelination have been documented by MRI. Enlarged lysosomes are seen on electron microscopic studies, and patients excrete large amounts of free sialic acid in the urine (Verheijen et al., 1999).

INFANTILE SIALIC ACID STORAGE DISEASE; ISSD Is also known as nsd|sialuria, infantile form|n-acetylneuraminic acid storage disease|nana storage disease

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

SOURCES: OMIM MENDELIAN