Skin Squamous Cell Carcinoma or Other Skin Carcinomas pT1 TNM Finding v7

**Semantic type:** Finding

**Definition:** Skin squamous cell carcinoma or other skin carcinomas with a tumor size 2 cm or less in greatest dimension with less than two high-risk features. High-risk features for the primary tumor staging are defined as follows: depth/invasion of more than 2 mm thickness; Clark level equal to or greater than IV; and perineural invasion. Anatomic location: primary site ear and primary site non-hair-bearing lip. Differentiation: poorly differentiated or undifferentiated. (from AJCC 7th Ed.)

**Synonyms:** - Cutaneous Squamous Cell Carcinoma or Other Cutaneous Carcinomas pT1 TNM Finding v7