title: Neuroimaging features of heroin inhalation toxicity: "chasing the dragon".
abstract: OBJECTIVE
  Our objective was to illustrate the dramatic neuroimaging findings of toxic leukoencephalopathy caused by heroin vapor inhalation.
  
  
  CONCLUSIONS
  Symmetric abnormality involving the cerebellar white matter and posterior limb of the internal capsule is characteristic of heroin vapor inhalation toxicity, although involvement may be more extensive, depending on the severity of the condition. MR imaging and CT appear to be essential for making this diagnosis because clinical history is often unreliable and findings at physical examination are nonspecific.
authors.affiliation: Department of Radiology, Vancouver Hospital and Health Sciences Centre UBC Site, Vancouver, BC, Canada.
authors.forename: Ciaran F
authors.initials: CF
authors.lastname: Keogh
authors.forename: Gordon T
authors.initials: GT
authors.lastname: Andrews
authors.forename: Sian D
authors.initials: SD
authors.lastname: Spacey
authors.forename: Kevin E
authors.initials: KE
authors.lastname: Forkheim
authors.forename: Douglas A
authors.initials: DA
authors.lastname: Graeb
mesh_terms: D000280:Administration, Inhalation; D000328:Adult; D001927:Brain Diseases / Q000139:chemically induced* / Q000175:diagnosis*; D003932:Heroin / Q000008:administration & dosage / Q000506:poisoning*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009294:Narcotics / Q000008:administration & dosage / Q000506:poisoning*; D014057:Tomography, X-Ray Computed
chemical_list: D009294:Narcotics; D003932:Heroin