Petrous Apex Granuloma Drained Trans Nasal Endoscopic

Endoscopic Trans nasal trans sphenoidal surgery, Petrous apex granuloma, alternative to middle cranial fossa approach, skull base surgery, endoscopic skull base surgery, Dr B. Todd Schaeffer, Dr Mark Eisenberg, ENT and Allergy Associates,LLP, North Shore LIJ Skull Base Center, Cranial Nerve Sixth Palsy