Nasal polyps and sinusitis.
D008443:Maxillary Sinus / Q000601:surgery*; D009297:Nasal Mucosa / Q000473:pathology; D009298:Nasal Polyps / Q000150:complications* / Q000601:surgery; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging; D011859:Radiography; D012852:Sinusitis / Q000209:etiology*