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Leucoencephalopathy after heroin inhalation. A case with partial regression of MRI lesions
1Division of Neurology, St Joseph University, Hôtel-Dieu de France Hospital, Beirut, Lebanon. koussalam@hotmail.com
Abstract:
We report the case of a 41 year old patient who developed a severe cerebellar ataxia. MRI findings were suggestive of myelin damage with symmetrical involvement of the cerebellar hemispheres and, to a lesser extent, the decussation of the superior cerebellar peduncles, the corticospinal tracts and the centrum semiovale. He had been inhaling heroin for the last 5 years. Two years after stopping heroin, he showed clinical improvement with partial regression of the MRI lesions. MRI findings of leucoencephalopathy after heroin inhalation are well described in the literature, however longitudinal studies are rare. It is the purpose of this report to show that clinical and MRI features can be characteristic of this leucoencephalopathy and that regression of white matter lesions can be seen after heroin withdrawal.
Insights
Heroin inhalation can cause severe cerebellar ataxia due to myelin damage. This condition, characterized by leucoencephalopathy, showed clinical improvement and MRI lesion regression after heroin withdrawal.
Area of Science:
- Neurology
- Toxicology
- Radiology
Background:
- Heroin inhalation is associated with neurological complications, including leucoencephalopathy.
- Cerebellar ataxia is a potential severe manifestation of chronic heroin use.
Observation:
- A 41-year-old patient presented with severe cerebellar ataxia and MRI findings consistent with myelin damage.
- Lesions were predominantly in the cerebellar hemispheres, superior cerebellar peduncles, corticospinal tracts, and centrum semiovale.
Findings:
- The patient reported a 5-year history of heroin inhalation.
- Two years post-cessation, significant clinical improvement and partial regression of MRI white matter lesions were observed.
Implications:
- This case highlights characteristic clinical and MRI features of heroin-induced leucoencephalopathy.
- It demonstrates the potential for white matter lesion recovery following heroin withdrawal, suggesting a reversible component.