表皮样囊肿是头颈部比较常见的非牙源性囊肿。虽然同,Shafer 等〔1〕,Anderson 和 Kissane〔2〕均提到过有癌变的可能性,但在文献上极少报道。我们在1985年8月曾遇一个颏下部表皮样囊肿癌变的病例,现报告如下:患者刘××,女,72岁,汉族,农民,住院号330841。1985年7月29日因颏下区无痛性肿块缓慢生长40余年而 Epidermoid cysts are common non-dental cysts in the head and neck. Although Shafer et al. [1] and Anderson and Kissane [2] mentioned the possibility of canceration, it is rarely reported in the literature. In August 1985, we encountered a case of carcinoma of the lower orbital epidermoid cyst. The present report is as follows: Patient Liu X, female, 72 years old, Han nationality, farmer, hospital number 330841. July 29, 1985 due to Her Majesty District Painless masses grow slowly for more than 40 years