Sinonasal Papilloma

**Semantic type:** Neoplastic Process

**Definition:** A benign neoplasm that arises from the ciliated respiratory mucosa that lines the nasal cavity and paranasal sinuses. It is classified as inverted papilloma, oncocytic papilloma, and exophytic papilloma. Clinical manifestations include nasal obstruction, epistaxis, and anosmia.

**Synonyms:** - Schneiderian Papilloma - Schneiderian papilloma, NOS - Sinonasal Schneiderian Papilloma - Sinonasal papilloma