Radiographic Findings of Dysplastic Cerebellar Gangliocytoma (Lhermitte-Duclos Disease) in a Woman with Cowden Syndrome: A Case Study and Literature Review.

The following case report features a middle-aged female patient, previously diagnosed with Cowden syndrome, who presented to the hospital with symptoms of headaches and changes in vision that began with no apparent cause and persisted for almost a month. MRI of the head confirmed a diagnosis of dysplastic cerebellar gangliocytoma, also known as Lhermitte-Duclos disease. This cerebellar tumor, while extremely rare in incidence, is classified as the most common type of brain lesion in adult patients with Cowden syndrome. This report will also include a comprehensive literature review of Cowden syndrome and Lhermitte-Duclos disease, with greater emphasis on the radiologic characteristics of Lhermitte-Duclos disease.