Abstract
An intraosseous myxoma is a rare, benign mesenchymal tumor that penetrates the bone. The occurrence of an intraosseous myxoma in the clivus is a unique presentation of the disease. The authors discuss the case of a 15-year-old male with a new diagnosis of a primary clival intraosseous myxoma presenting with cranial nerve VI palsy. This is the third documented case of this pathology occurring in the clivus. This patient was successfully treated with endoscopic endonasal resection of the tumor. Primary clival intraosseous myxomas are extremely rare, but nonetheless it is important to add it to the differential diagnosis of clival masses. This mass has a high risk of recurrence, and prior literature suggests gross total resection may improve chances of progression-free survival. However, further larger studies are needed to provide guidelines regarding proper management of this pathology.
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