Large Subependymoma Inferior to the Cerebellopontine Angle With Significant Obstructive Hydrocephalus: A Case Report on an Extremely Rare Tumor

Cureus. 2021 Oct 11;13(10):e18686. doi: 10.7759/cureus.18686. eCollection 2021 Oct.

Abstract

Subependymomas are rare yet benign tumors that are commonly found within the ventricular system. We describe the case of a 51-year-old male presenting with hydrocephalus and progressive headaches found to have a right cerebellopontine angle (CPA) lesion encasing multiple blood vessels and cranial nerves (CN). The lesion was resected subtotally via a retrosigmoid approach and was found to be a subependymoma. CPA subependymomas are extremely rare lesions. The neuroimaging and histopathological findings as well as a comprehensive literature review of similar cases are discussed.

Keywords: benign brain tumor; cerebellopontine angle; pontocerebellar cistern; rare brain tumors; rare case report; subependymoma.

Publication types

  • Case Reports