Unusual posterior fossa mass caused by Lhermitte-Duclos disease with no symptoms in adults.

We present an asymptomatic case of Lhermitte-Duclos disease (LDD) in a 40-year-old woman and discuss the diagnosis, management and prognosis of this rare disease. Surgical intervention is strongly recommended as an initial therapy strategy even in asymptomatic adult patients. Conservative strategies could be chosen if the mass involves the brainstem or is accidentally found in the elderly.