Congenital disorders |
Arnold-Chiari malformation |
Congenital cerebellar hypoplasia/aplasia |
Dandy Walker cyst |
Gillespie syndrome |
Hydrocephalus |
Joubert syndrome (congenital absence of the cerebellar vermis) |
Pontocerebellar hypoplasia |
Genetic disorders with dominant inheritance |
Adult onset leukodystrophy |
Dentatorubral pallidoluysian atrophy |
Episodic ataxias |
Myelocerebellar disorder (ataxia-pancytopenia syndrome) |
Spinocerebellar ataxias |
Genetic disorders with autosomal recessive inheritance |
Abetalipoproteinemia (Bassen-Kornzweig disease) |
Aceruloplasminemia |
Aminoacidurias:
|
Ataxia with hypogonadism (Holmes ataxia) |
Ataxia with isolated vitamin E deficiency |
Ataxia with oculomotor apraxia I |
Ataxia with oculomotor apraxia II |
Ataxia-telangiectasia |
Ataxia-telangiectasia-like disorder |
Autosomal recessive cerebellar ataxia type 1 |
Autosomal recessive cerebellar ataxia type 2 |
Autosomal recessive cerebellar ataxia type 3 |
Cerebrotendinous xanthomatosis |
Cockayne syndrome |
Friedreich ataxia |
Hyperammonemias:
|
Leukodystrophies:
|
Lysosomal diseases:
|
Marinesco-Sjögren syndrome |
Nijmegen breakage syndrome |
Pantothenate kinase-associated neurodegeneration |
Refsum disease |
Spastic ataxia of Charlevoix-Saguenay |
Unverricht-Lundborg disease |
Wilson disease |
Genetic disorders with X-linked inheritance |
Adrenomyeloneuropathy |
Fragile X tremor ataxia syndrome |
Ornithine transcarbamylase deficiency |
Pyruvate dehydrogenase deficiency |
X-linked adrenoleukodystrophy |
X-linked sideroblastic anemia with ataxia |
Mitochondrial disorders |
Nonsyndromic mitochondrial disorders |
Syndromic mitochondrial disorders:
|
Toxic and metabolic disorders |
Alcoholic cerebellar degeneration |
Carbon monoxide |
Drugs (eg, antiseizure medications, chemotherapy) |
Extra pontine myelinolysis |
Hepatocerebral degeneration |
Hyperthermia |
Hypomagnesemia |
Hypoparathyroidism |
Hypothyroidism |
Insecticides |
Portal-systemic encephalopathy |
Toxins:
|
Infectious etiologies |
Cerebellar abscess |
Congenital rubella panencephalitis |
Fungal meningoencephalitis |
HIV encephalitis/AIDS |
HSV encephalitis |
Legionella |
Lyme disease |
Malaria |
Mycoplasma |
Neurocysticercosis (rarely) |
Prion diseases:
|
Progressive multifocal leukoencephalopathy |
Streptococcus pneumoniae |
Subacute sclerosing panencephalitis (classically measles, rubella) |
Syphilis (rare as only manifestation) |
Toxoplasmosis (rare as only manifestation) |
Tuberculosis |
Viral cerebellitis:
|
Whipple disease |
Vascular |
Cerebellar hemorrhage |
Cerebellar infarction |
Superficial siderosis |
Vertebrobasilar insufficiency:
|
Vitamin deficiencies |
Vitamin B12 deficiency |
Vitamin E deficiency |
Wernicke encephalopathy, thiamine deficiency |
Zinc deficiency |
Neoplastic processes |
Benign tumors:
|
Lymphoma |
Paraneoplastic cerebellar degeneration |
PTEN hamartoma tumor syndrome, including Cowden syndrome |
Metastatic cancer, most commonly in adults:
|
Primary malignant tumors:
|
Autoimmune diseases |
Acute disseminated encephalomyelitis |
Bickerstaff encephalitis |
Celiac disease (gluten enteropathy with ataxia) |
GAD antibody-associated ataxia |
Hashimoto thyroiditis/encephalopathy |
Histiocytosis X |
Miller Fisher variant of Guillain-Barré syndrome |
Multiple sclerosis (note overlap with postinfectious cerebellitis as initial presenting symptom) |
Neurosarcoidosis |
Postinfectious cerebellitis (eg, following varicella zoster virus or Epstein-Barr virus infections) |
Vasculitis, including:
|
Sporadic cerebellar neurodegenerative diseases |
Multiple system atrophy |
Neuroacanthocytosis |
Pantothenate kinase-associated neurodegeneration (sporadic form) |
Progressive supranuclear palsy |
Cerebellar ataxia mimics |
Large fiber sensory neuropathy |
Migraine headache with ataxia |
Normal pressure hydrocephalus |
Obstructive hydrocephalus |
Psychogenic ataxia |
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