Wagner R F
Department of Dermatology, University of Texas Medical Branch at Galveston 77555-0783, USA.
Tex Med. 1996 Nov;92(11):66-7.
A 38-year-old man, initially referred for Mohs' surgery of a facial skin cancer, was found to have a thin (less than 0.5 mm thick, Clark Level II) primary cutaneous melanoma of the buttock. The melanoma, previously unnoticed by the patient, was 0.5 cm in diameter. Sunburn, a widely recognized risk factor for primary cutaneous melanoma, had occurred on the patient's buttocks during skinny dipping 20 years earlier. Traumatic injury due to ultraviolet light exposure may explain the subsequent development of some skin cancer on sites ordinarily protected by clothing.
一名38岁男性，最初因面部皮肤癌接受莫氏手术转诊，结果发现其臀部有一薄型（厚度小于0.5毫米，克拉克二级）原发性皮肤黑色素瘤。该黑色素瘤此前未被患者注意到，直径为0.5厘米。晒伤是原发性皮肤黑色素瘤广泛认可的风险因素，该患者20年前裸泳时臀部曾发生晒伤。紫外线暴露造成的创伤性损伤可能解释了通常受衣物保护部位随后发生某些皮肤癌的原因。
