Lhermitte-Duclos syndrome describes a rare mass lesion of the posterior fossa, also referred to as dysplastic cerebellar gangliocytoma (WHO Grade I).
Epidemiology
This is a very rare disease that is frequently associated with autosomal dominant Cowden syndrome. Approximately 200 cases have been described in the literature worldwide1.
Imaging
Imaging typically shows a tiger-stripe pattern resulting from enlarged folia.
Treatment
Particularly in young patients, a biopsy should be considered to rule out a medulloblastoma in the differential diagnosis. Surgical resection should be considered in the presence of significant mass effect2.
Imaging
References
Robinson S, Cohen AR. Cowden disease and Lhermitte–Duclos disease: an update. FOC. January 2006:1-6. ↩ ↩
Greenberg MS, Abel N, Agazzi S. Handbook of Neurosurgery. Georg Thieme Verlag; 2020. ↩ ↩