Lacrimal Drainage System Non-Keratinizing Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A squamous cell carcinoma of the lacrimal drainage system characterized by a plexiform or ribbon-like growth pattern, cytological atypia, and lack of histological evidence of keratinization.

**Synonyms:** - Lacrimal Drainage System Nonkeratinizing Squamous Cell Carcinoma - Non-Keratinizing Squamous Cell Carcinoma of the Lacrimal Drainage System