Reappraising Schwannoma-Hemangioma Composite Tumors as Synchronous Tumorigenic Entities With Conjoined Histomorphology: A Case Report.

ABSTRACT

The most common peripheral nerve sheath and vascular tumors are schwannomas and hemangiomas, respectively. These tumors can affect any organ system and usually occur as separate morphologic and diagnostic entities. Herein, we describe the case of a 24-year-old woman with a tumor demonstrating composite differentiation to both cavernous hemangioma and schwannoma in the scalp. The patient had a slow-growing subcutaneous scalp tumor in the occipital region with an insidious onset and progression. The patient underwent wide local excision for treatment and based on follow-up evaluations has remained asymptomatic with no signs of recurrence.