Work

Seeing the light: Endoscopic endonasal intraconal orbital tumor surgery

Year: 2010

Type: article

Abstract: External approaches to the orbit are well established, including the lateral, medial, and inferior orbitotomy.Orbitozygomatic craniotomy can be used for tumors that extend both intracranially and into the orbit and is used for exposure of the optic nerve and canal. 1 Since the 1980s, endoscopic measures have been used to enhance visualization in standard external approaches. 2 Endoscopic endonasal orbital and optic nerve decompressions have become accepted treatments for thyroid eye disease and traumatic optic neuropathy that is unresponsive to steroids.A few case reports of endoscopic decompression, biopsy, and resection of tumors that involve the orbit also have been reported.3-5 The expanded endonasal approach (EEA) has been extended to resection of all types of skull base tumors, including posterior, middle, and anterior fossa masses.In this report, we describe the anatomic principles, indications, technical nuances, and limitations of the medial-inferior intraconal EEA to intraorbital tumor surgery, illustrated through a case series of six patients.This approach is ideally suited to benign soft-tissue masses (hemangioma/lymphangioma) in the medial-inferior quadrant of the orbit that do not extend superolaterally.The use of this

Source: Otolaryngology

DOI: 10.1016/j.otohns.2010.07.010