A Radiological Curiosity of a Rare Diagnosis: Lhermitte-Duclos Disease

Abstract

Lhermitte–Duclos disease (LDD) is a rare cerebellar lesion, described in 1920 by two French physicians: Lhermitte and Duclos. The clinical presentation is usually made of neurological symptoms. This lesion is characterized by a hamartomatous lesion in the posterior fossa. Mainly diagnosed by MRI, when it comes to preoperative, the T2-weightened MRI demonstrates the classical “tiger-striped” pattern. The definitive diagnosis, nonetheless, is histopathological. The treatment for LDD consists of surgical decompression or excision. We present here a rare case of a woman who developed neurological symptoms that led to LDD diagnosis to describe protocol MRI imaging, the main findings and their pathophysiological meanings.