[Megalencephalic leukoencephalopathy with subcortical cysts: report of 4 new cases]
S Jerbi Omezzine1, H Ben Ameur, R Bousoffara
1Service de Radiologie, CHU Tahar Sfar Mahdia, Tunisia. saidajerbi@topnet.tn
Abstract:
Megalencephalic leukoencephalopathy with subcortical cysts or Van der Knapp disease is a rare entity that has recently been identified. It is characterized by the presence of macrocephaly, epilepsy and a slowly progressive spastic cerebellar syndrome. The culprit MLC1 gene is located on chromosome 22. MRI provides valuable data for diagnosis characterized by diffuse white matter lesions with subcortical cysts. We report four cases of megalencephalic leukoencephalopathy with subcortical cysts from two different families.
Insights
Megalencephalic leukoencephalopathy with subcortical cysts (Van der Knapp disease) is a rare neurological disorder. Diagnosis is aided by MRI, revealing white matter lesions and subcortical cysts, alongside macrocephaly and epilepsy.
Area of Science:
- Neurology
- Genetics
- Radiology
Background:
- Megalencephalic leukoencephalopathy with subcortical cysts (MLC) is a rare genetic disorder.
- Also known as Van der Knapp disease, it presents with macrocephaly, epilepsy, and progressive spastic cerebellar syndrome.
Observation:
- This report details four cases of MLC from two distinct families.
- The study highlights the characteristic MRI findings of diffuse white matter lesions and subcortical cysts.
Findings:
- The gene responsible for MLC, MLC1, is located on chromosome 22.
- MRI is a crucial diagnostic tool for identifying the characteristic white matter abnormalities and cysts.
Implications:
- This research contributes to understanding the genetic basis and clinical presentation of Van der Knapp disease.
- Further research into MLC1 may lead to improved diagnostic strategies and potential therapeutic targets for this rare leukoencephalopathy.
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