Chasing the dragon sign of toxic leukoencephalopathy

Discussion:

This patient is a known regular consumer of inhaled heroin. He was brought to the hospital by his relatives. Friends of the patient confirm consumption of inhaled heroin.

Toxic leukoencephalopathy described as the result of the use of inhaled heroin is known as chasing the dragon. The changes are limited to the white matter, with no cortical or ventricular involvement.

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