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Table 1 Differential Diagnosis of Extrapyramidal syndrome.

From: Extrapontine myelinolysis presenting as acute parkinsonism

Hereditary disorders
   • Wilson's disease
   • Huntington's disease
Vascular parkinsonism
   • Infarcts
   • Vasculitis
Structural lesions
   • Gliomas
   • Meningioma
Hypoxic injury Infections
   • ADEM(acute demyelinating encephalomyelitis)
   • Postencephalitic
   • Creutzfeldt-jakob disease
Metabolic
   • Central and Extrapontine myelinolysis
   • Hypoparathyroidism
Mitochondrial cytopathies Posttraumatic Drugs
   phenothiazines, butyrophenones, thioxanthenes Metoclopramide, methyldopa, reserpine, verapamil, flunarizine, amiodarone.
Toxins
   carbon monoxide, cyanide, mptp, manganese.