Isolated Facial Nerve Palsy Due to Mastoid Chondrosarcoma : A Rare Presentation

Abstract

Chondrosarcomas of temporal bone is a rare malignant neoplasm constituting only 0. 16% of all intracranial tumors. Cranial nerve involvement in chondrosarcoma of temporal bone is related to specific anatomic location of the tumor. Isolated facial palsy should be evaluated thoroughly and should be differentiated from Bell's palsy. We present a case of isolated facial palsy due to mastoid bone chondrosarcoma in a 25 year old man which was misdiagnosed as Bell's palsy and treated for the same previously. The clinical features, management and outcome are discussed with reviewing the related literature.