Sinus nasal polyp

Polyps are benign growths which can occur in the nasal passages or sinuses. They most commonly occur due to chronic inflammation due to asthma, infection and allergies. They may be entirely asymptomatic, or may cause symptoms. They occur in the mucous membrane of the nasal passages and sinuses.Imaging is not the best way to assess the nasal mucosal tissue for polyps, the best way is direct visualization of the nasal passages.