摘要报道2例萎缩型隆突性皮肤纤维肉瘤.患者分别为16岁和24岁的男性,临床最初均表现为界限清楚的萎缩型红斑,逐渐在红斑基础上发生结节.病程分别为6年和5年.皮损组织病理检查显示表皮萎缩或正常,肿瘤细胞在真皮浅层呈波浪状排列,平行于表皮;肿瘤细胞在真皮下部呈席纹状、车幅状、编织状排列,并可见肿瘤细胞侵犯皮下脂肪,分割脂肪细胞.肿瘤细胞表达波形蛋白、CD34,不表达CD68和S100蛋白.

abstractsTwo cases of atrophic dermatofibrosarcoma protuberans (DFSP) are reported.The patients were a 16-year-old and a 24-year-old boy with a clinical course of 6 and 5 years respectively.The lesions began as well-marginated atrophic erythema,and subcutaneous nodules appeared gradually on the erythema.Histopathology showed atrophic or normal epidermis,wavy arrangement of tumor (spindle) cells in the superficial dermis which was aligned parallel to the epidermis,storiform arrangement of tumor cells in the lower dennis,and typical lacelike pattern of infiltration of subcutaneous fat tissue with tumor cells.Immunohistochemistry showed that the tumor cells stained positive for vimentin and CD34,but negative for S100 or CD 68.