Collision Tumour of Cerebellopontine Angle in a Patient without Neurofibromatosis Criteria: Case Report

Abstract

The coexistence of meningioma and schwannoma as two distinct components within the same tumor is extremely rare. They are usually associated with Type 2 Neurofibromatosis (NF-2) but there are some isolated reports of cases without confirmed diagnosis or in association with cancer and/or post irradiation cancer patients. The authors present a case of a collision tumor of the CPA with a presumed diagnosis of NF-2 and a literature review.

Radiologically Indistinguishable Contiguous Meningioma and Schwannoma in the Same Cerebellopontine Angle in a Patient with NF2: Case Report and Literature Review

“…The cisternal and intracanalicular portions of bilateral Sir, Schwannomas are the most common tumors in the cerebellopontine (CP) angle (accounting for 80%-85%), followed by meningiomas (5%-10%). [1] Simultaneous occurrence of these tumors in the same CP angle is rarely reported in literature even in patients with neurofibromatosis-2 (NF2). [2,3] We report a case of 45-year-old female with a contiguous acoustic schwannoma and a meningioma in the same CP angle which were radiologically indistinguishable.…”