2016 Volume 49 Issue 11 Pages 1080-1089
A 66-year-old woman was referred to our hospital because of two masses on the scalp. A biopsy of the scalp tumor revealed mucinous adenocarcinoma. Because the tumor was suspected to be a cutaneous metastasis, she underwent CT for detecting the primary lesion. CT revealed a tumor in the stomach. Endoscopic examination showed a type V tumor on the anterior wall of the gastric body. The biopsy specimen from the gastric tumor was diagnosed as mucinous adenocarcinoma, similar to the skin tumor. Therefore, we concluded that the isolated cutaneous metastatic lesion originated from the gastric cancer. Because the gastric cancer was in stage IV, she was treated by chemotherapy with S-1. After two cycles of chemotherapy, both gastric and scalp tumors decreased in size and no other evidence of metastatic lesions was found by CT. We performed total gastrectomy, followed by postoperative chemotherapy using S-1. At 10 years after surgery, no new lesion has been detected. The prognosis of gastric cancer with skin metastasis is poor. However, our case demonstrates that successful treatment allows for recurrence-free status and long-term survival.
