DDx ⬇
- Nasal polyps
- Inverted papilloma
- Juvenile angiofibroma
- Nasopharyngeal carcinoma (usually squamous cell, also adenocarcinoma, mucosal melanoma, sarcoma, non-Hodgkin's lymphoma)
- Wegener's granulomatosis
- Sarcoidosis
- Polymorphic reticulosis (lethal midline granuloma)
Related DDx ⬆