Non-Invasive Papillary Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A well differentiated squamous cell carcinoma characterized by a papillary, exophytic growth pattern, hyperkeratosis, and absence of invasion of adjacent tissues.

**Synonyms:** - Papillary squamous cell carcinoma in situ - Papillary squamous cell carcinoma, non-invasive