Table of ContentsDefinition / general | Sites | Pathophysiology | Clinical features | Radiology description | Radiology images | Case reports | Treatment | Microscopic (histologic) description | Microscopic (histologic) images | Differential diagnosis | Additional references
Cite this page: Gyure K.A. Heroin leukoencephalopathy. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/cnsheroin.html. Accessed May 24th, 2019.
Definition / general
- Toxic leukoencephalopathy secondary to the use of inhaled heroin or "chasing the dragon"
- White matter including cerebellar white matter
- Heating of heroin is thought to activate a lipophilic compound that damages white matter
- Stage 1: predominantly cerebellar symptoms
- Stage 2: cerebellar and extrapyramidal symptoms
- Stage 3: progressive spasms, akinetic mutism and death
- Increased signal on T2 weighted and FLAIR MR images in white matter, including cerebellar white matter with sparing of the dentate nucleus
- Supportive care
Microscopic (histologic) description
- Myelin loss / vacuolation - "spongiform encephalopathy"
- Inflammatory infiltrate consisting of macrophages with associated perivascular chronic inflammation
Microscopic (histologic) images
- Multiple sclerosis and other demyelinating diseases