title: Toxic and acquired metabolic encephalopathies: MRI appearance.
abstract: OBJECTIVE
  The differential diagnosis of patients presenting with acute encephalopathy is broad. Imaging can help in narrowing the differential in many cases. We pictorially review the more classic MRI features of several acute toxic and acquired metabolic encephalopathies.
  
  
  CONCLUSIONS
  After completing this article, the reader will have knowledge of the more common imaging appearances of toxic and acquired metabolic encephalopathies, which will help in correctly identifying the cause of encephalopathy in some patients.
authors.affiliation: Division of Neuroradiology, Department of Diagnostic Imaging, Foothills Medical Centre, 1403 29 St. NW, Calgary, AB T2N 2T9, Canada. pranshusharma@hotmail.com
authors.forename: Pranshu
authors.initials: P
authors.lastname: Sharma
authors.forename: Muneer
authors.initials: M
authors.lastname: Eesa
authors.forename: James N
authors.initials: JN
authors.lastname: Scott
mesh_terms: D001928:Brain Diseases, Metabolic / Q000139:chemically induced / Q000175:diagnosis* / Q000209:etiology; D002249:Carbon Monoxide Poisoning / Q000150:complications / Q000175:diagnosis; D003042:Cocaine / Q000506:poisoning; D016572:Cyclosporine / Q000009:adverse effects; D003937:Diagnosis, Differential; D019855:Ethylene Glycol / Q000506:poisoning; D006501:Hepatic Encephalopathy / Q000150:complications / Q000175:diagnosis; D006801:Humans; D007003:Hypoglycemia / Q000150:complications / Q000175:diagnosis; D008279:Magnetic Resonance Imaging / Q000379:methods*; D000432:Methanol / Q000506:poisoning; D008795:Metronidazole / Q000009:adverse effects; D017590:Myelinolysis, Central Pontine / Q000175:diagnosis / Q000209:etiology
chemical_list: D008795:Metronidazole; D016572:Cyclosporine; D019855:Ethylene Glycol; D003042:Cocaine; D000432:Methanol