Lacrimal Drainage System Exophytic Papilloma

**Semantic type:** Neoplastic Process

**Definition:** A benign neoplasm that arises from the lacrimal drainage system, usually the lacrimal sac, and consists of outward growing papillae with central fibrovascular cores covered most often by squamous, and less often by squamo-transitional or columnar multilayered epithelium.

**Synonyms:** - Exophytic Papilloma of the Lacrimal Drainage System