A Case of True Gastric Carcinosarcoma with Lymph Nodes Metastasis containing Sarcomatous Component

Nobuaki Fujikuni, Takaaki Etoh, Kei Koide, Shintaro Kuroda, Koichi Oishi, Takayuki Kadoya, Saburo Fukuda, Hideto Sakimoto and Makoto Takahashi

Department of Surgery, Chugoku Rosai Hospital

Carcinosarcoma is rare neoplasm, and true gastric carcinosarcoma which of sarcomatous component is differentiating toward definite mesenchymal elements is extremely rare. We report a case of true gastric carcinosarcoma. A 69-year-old woman admitted for vertigo, palpitation, weight loss and tarry stool. Preoperatively diagnosis is gastric carcinoma by endoscopic biopsy, and Distal gastrectomy with Billroth-II reconstruction was underwent. Microscopically, the gastric tumor and metastatic lymph nodes consisted of intimately mixed adenocarcinoma and sarcomatous elements in which spindle cells growing. The sarcomatous components of the tumor was stained immunohistochemically for αSMA, and confirmed the pathological diagnosis of true carcinosarcoma. Only 12 cases of true gastric carcinosarcoma have been reported in Japan to our knowledge.

Key words
true gastric carcinosarcoma, metastatic lymph node, distal gastrectomy

Reprint requests
Nobuaki Fujikuni Department of Second Surgery, Hiroshima University
1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551 JAPAN

Accepted
December 16, 2009

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