Inverted papilloma of nose and paranasal sinuses -surgical dilemma.

Inverted Papilloma is a benign neoplasm orginating from the schneiderian membrane of nose and paranasal sinus cavities. It has varied clinical and histological involving lateral nasal wall, septum, ethmoids, maxillary and sphenoid sinuses and at times involves skull base. Interesting three cases are reported because of varied presentation of inverted papilloma.