Usefulness of immunohistochemical studies in diagnosing metachronous gallbladder and small intestinal metastases from lung cancer with gastrointestinal hemorrhage: a case report

作者：Tanaka Masayuki; Kitago Minoru^*; Akiyama Nobuyoshi; Iwamaru Arifumi; Yamamoto Tatsuya; Suzuki Fumio; Hibi Taizo; Abe Yuta; Yagi Hiroshi; Shinoda Masahiro; Itano Osamu; Ogata Kentaro; Kitagawa Yuko

来源：World Journal of Surgical Oncology, 2015, 13(1): 63.

DOI：10.1186/s12957-015-0435-7

• Metachronous gallbladder and small intestinal metastases
• Primary lung cancer
• Gastrointestinal hemorrhage
• Immunohistochemical staining

Isolated metachronous gastrointestinal metastases from advanced-stage lung cancer are rarely diagnosed on the basis of symptoms and resected. In this report, we present a case of resectable metachronous gallbladder and small intestinal metastases of lung cancer. An 86-year-old woman was treated for lung cancer with resection of the right inferior lobe. Five months after the surgery, she was re-admitted because of melena and anemia. Ultrasonography showed a gallbladder tumor with gastrointestinal hemorrhage, and laparoscopic-assisted cholecystectomy was subsequently performed. However, 2 months after this event, the patient presented again with melena and anemia and was diagnosed with a small intestinal tumor. Therefore, laparoscopic-assisted partial resection of the small intestine was performed. Immunohistochemical staining for thyroid transcription factor-1 and cytokeratin 7 confirmed that the two resected tumors were metachronous metastases of the primary lung cancer. The patient died of liver metastases 5 months after the last surgery. Our experience with this case suggests that surgical resection might not be curative but palliative for patients with isolated gallbladder and small intestinal metastases diagnosed on the basis of melena that is resistant to conservative treatment.

• 出版日期2015-2-18