重複癌 (胃腺癌および子宮扁平上皮癌) 治療後15年目に生じた皮膚血管肉腫の細胞像

We report a case of cutaneous angiosarcoma of the left hip. A 79-year-old woman developing cutaneous angiosarcoma at the radiotherapy site for squamous cell carcinoma of the cervix uteri 15 years earlier was found in imprint cytology to have loosely clumped small round tumor cells with a high N/C ratio. Because she had undergone surgery for double cancer (gastric adenocarcinoma and squamous cell carcinoma of the cervix uteri), we initially suspected low-grade carcinoma metastasis. Malignant cells were stained with CD34 and factor VIII-related antigen by immunohistological study, yielding a final diagnosis of cutaneous angiosarcoma.