Lhermitte–Duclos disease

Lhermitte–Duclos disease (English pronunciation: /ˌlɛrˈmiːtˌduːˈkloʊ/) (dysplastic gangliocytoma of the cerebellum, LDD) is a rare, slowly growing tumor of the cerebellum, sometimes considered as hamartoma, characterized by diffuse hypertrophy of the granular layer of the cerebellum. It is often associated with Cowden syndrome. It was described by Jacques Jean Lhermitte and P. Duclos in 1920.