Nasal Polyposis. Definition Nasal polyps are non-neoplastic masses of edematous nasal mucosa. They are divided into two main types: – Ethmoidal Polypi.
Philippe Gevaert, MD, PhD Michael A. Kaliner, MD Paul Van Cauwenberge, MD, PhD Reviewers: Kamal Hanna, Richard F. Lockey, Todor Popov Chronic Rhinosinusitis.
