Two Cases of Frontal Sinus Inverted Papilloma Treated With a Combined Bifrontal Craniotomy and Endonasal Endoscopic Approach

An inverted papilloma of the frontal sinus is a challenging lesion for surgeons, both anatomical and pathological reasons. Despite trend away from an external approach towards endonasal endoscopic approach, indications remain. The options include trephination, transpalpebral orbital craniotomy, supraorbital transeyebrow osteoplastic flap, bifrontal craniotomy with cranialization. Each has advantages disadvantages. Deciding on appropriate important patient’s prognosis risk complications. We report two cases treated combined cranialization approach. also present general review approaches mentioned above.