Mononostril Contralateral Chopsticks Technique to Petrous Apex and Clival Lesions

Tumors of the petrous apex are particularly challenging because of the complex anatomy in this region. We are describing a novel technique on approaching contralateral petrous apex and clival lesions with preservation of the nasal structures using a mononostril technique through the contralateral sphenoid sinus. This is achieved by using the chopsticks technique in endoscopy along with angled endoscopes allowing a unique corridor into the lateral compartment of the petrous apex.