Facial distribution of squamous cell carcinoma in Japanese.

Squamous cell carcinoma (SCC) is a malignant tumor of the skin. SCC is frequently distributed on highly exposed areas such as the face and dorsal surface of the hands because it is closely related to ultraviolet damage. We retrospectively analyzed 106 cases of SCC treated at Nagoya City University Hospital from April 2004 to October 2015 and examined regional features based on modified facial aesthetic units. SCC occurred more frequently on the cheek and forehead on the right side. The site of the tumor (nose and eyelid) was the only factor affecting tumor diameter.