角化棘皮瘤是白人常见的良性肿瘤,但在有色人种中较为少见,现将我们所见一例报导如下。病例患者王××,男,57岁,于1982年9月10日来诊。病史:40年前全身皮疹,用日本药“污虞露”外用后,全身皮疹大部消退,二小腿各留下一块皮损,且有剧痒。1957年在北京某医院照x线后二下腿的皮损消退;1965年 Keratoacanthoma is a common benign tumor in whites, but it is rare in people of color. Now we have seen one case report as follows. Case patient Wang X, male, 57 years old, came to visit on September 10, 1982. History: After the general body rash 40 years ago, after the topical application of the Japanese drug “stainless dew”, most of the body’s rash subsided, leaving a piece of skin lesion on both lower legs and itching. In 1957, the skin lesions of the lower legs of a hospital in Beijing were dissipated; in 1965