A Rare Case of Adult Medulloblastoma Associated with Multiple Sclerosis: Case Report and Literature Review

Medulloblastomas are the most common primary malignant brain tumors in childhood. They are responsible for around 20–40% of all brain tumors in children. They rarely occur in adulthood, but here they only make up less than 1% of all brain tumors. The standard therapy consists of an operation in combination with radiation and chemotherapy, which are individually determined for the patient. In this article, we discuss a case of 47 years old female patient diagnosed with primary progressive multiple sclerosis since 1 year. After 3 months of the diagnosis, she deteriorated and became unable to walk. MRI showed a large patchy enhancing midline cerebellar mass with evolving hydrocephalus. Tumor expressed positive reaction with synaptophysin immunohistochemical stain rendering medulloblastoma diagnosis.