Metachronous Skull Base Paraganglioma Surgical Management: 2-Dimensional Operative Video.

ABSTRACT

Paragangliomas (PGLs) are benign hypervascular tumors that can develop in head and neck at different locations, primarily in the carotid bifurcation, jugular bulb, tympanic plexus, and vagal ganglia.1 Different gene mutations have been linked to the familial inherited forms, which can represent approximately 30% of all PGLs.1,2 These are classified into 5 different clinical syndromes PGL 1 to 5.1 These patients have increased risk for synchronous and metachronous lesions requiring an extensive work-up for hormone secretion and other associated neoplasms, as well as attentive follow-up for lifelong management.1,3 Surgical resection is the best treatment option as it can be curative when the resection is total.2-4 Preservation of the lower cranial nerve function is central to the management of head and neck PGLs, given the gravity of bilateral injuries.3 Irradiation therapy should be considered if the risk for bilateral lower cranial nerve injuries is high.5 Surgically, intrabulbar resection with preservation of the medial wall of the jugular bulb protects the lower cranial nerve function.3 Other technical finesses, including maintaining the facial nerve in its bony fallopian canal (facial bridge), avoiding carotid artery sacrifice, preservation of the ear canal, and preoperative embolization, contributed markedly to outcome improvement.2,3 We report a case of a 34-yr-old male with PGL 3 with a left glomus jugulare tumor that recurred and a right carotid body tumor. Patient consented to surgery and photography. Image at 344 republished from Al-Mefty and Teixeira,3 with permission from JSNPG.