Endoscopic maxillectomy: anatomo-radiological description of the "double" maxillary sinus window.

Objectives/hypothesis: To present a modified endoscopic medial maxillectomy (MEMM) approach to control maxillary sinus pathologies.

Methods: MEMM was completed in 13 fresh-frozen specimens. An MEMM includes cutting the nasolacrimal duct, inferior meatus flap, and repositioning the inferior turbinate (IT).