Characteristics of non‐melanoma skin cancers of the cutaneous perioral and vermilion lip treated by Mohs micrographic surgery

Background The lip and surrounding perioral region are susceptible to non‐melanoma skin cancer, but the distribution of basal cell and squamous cell carcinoma on the cutaneous and vermilion lips has not been fully elucidated. Objective To investigate the distribution of cutaneous and vermilion lip non‐melanoma skin cancer and to better describe risk factors, anatomic location, treatment characteristics and oncologic outcomes. Methods A retrospective comparative case series of patients undergoing Mohs micrographic surgery (MMS) at a single academic centre for lip and perioral basal cell and squamous cell carcinoma was performed over a 5‐year period. Demographics, medical comorbidities, surgical characteristics and recurrence status were extracted. Results Forty‐five vermilion and 116 cutaneous lip cancers were identified. Basal cell carcinoma (BCC) was more common in the cutaneous perioral region, while squamous cell carcinoma (SCC) was more common on the vermilion lip (P