皮锊是一种少见的癌前期病变,国内报导不多。近二年我科曾见到4例皮角,均用二氧化碳激光聚焦切除,取得满意疗效,现小结如下: 一、临床资料: 4例病人,男3例,女1例,年令40～60岁。发生于额部2例,唇部1例,左上臂内侧一例,其中2例已经病理证实,经二氧化碳激光治疗一次痊愈。二、治疗方法: Pigeon is a rare precancerous lesions, few domestic reports. In the past two years, our department has seen 4 cases of skin angle, both with CO2 laser focused excision, and achieved satisfactory results, are summarized as follows: First, the clinical data: 4 patients, 3 males and 1 female, the annual 40 ~ 60 year old. Occurred in the forehead in 2 cases, 1 case of the lip, a case of medial left upper arm, of which 2 cases have been confirmed by pathology, the carbon dioxide laser treatment once cured. Second, the treatment: