この写真を見て、何の癌への進展が疑われるか？

扁平細胞癌
（この写真は日光角化症である）

This photograph shows actinic keratosis (AK), the most common precancerous dermatosis. These lesions occur most often on sun-exposed parts of the body such as the hands and face. They present clinically as pink, gritty papules.

Rx Dermatology