Proteus syndrome: MRI characteristics of plantar cerebriform hyperplasia.

Proteus syndrome is a rare congenital hamartomatous syndrome with a variety of abnormalities. It shares many features with other congenital hamartomatous disorders, but cerebriform hyperplasia of the soles and the palms is known as a quite distinctive characteristic in the dermatologic literature. The purpose of this case report is to demonstrate the MRI features of plantar cerebriform hyperplasia in a 9-year-old boy with known Proteus syndrome.