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위선암과 파골성 거대세포상 십이지장암이 병발한 원발성 중복암 1 예
박상준(Sang Jun Park),이준희(Jun Hee Lee),김승연(Seung Youn Kim),박현신(Hyeon Sin Park),권계숙(Kye Sook Kwon),조현근(Hyeon Geun Cho),이돈행(Don Haeng Lee),김범수(Pum Soo Kim),김형길(hyung Gil Kim),신용운(Yong Woon Shin),김영수(Young 대한내과학회 2001 대한내과학회지 Vol.61 No.2
Osteoclast like giant cells (OGCs) are infrequently encountered in a number of malignancies in extraosseous sites, such as the breast, pancreas, liver, stomach, thyroid gland, and other organs. Immunohistochemical stains demonstrate that the OGCs are of monocytic or histiocytic origin and probably represent a distinctive host response to the tumor. The OGCs show strong reactivity with CD68, and no reactivity with cytokeratin or polyclonal antibody to carcinoembryonic antigen (CEA). We experienced a 70 year old man who presented with epigastric pain and weight loss, and found synchronous duodenal carcinoma with OGCs and gastric adenocarcinoma. Histological examination showed an undifferentiated carcinoma with evenly scattered OGCs in the duodenum and liver metastases. OGCs were never seen to undergo mitotic division or exhibit atypia. By immunohistochemistry, neoplastic cells were diffusely positive for vimentin and focally positive for CAM 5.2 (low molecular weight cytokeratin), but OGCs were positive for only vimentin. He underwent palliative gastrojejunostomy for intestinal obstruction due to a large duodenal neoplasm. We report a case of synchronous double primary cancer of gastric adenocarcinoma and duodenal carcinoma with OGCs in a 70 year old man which was proved histopathologically.(Korean J Med 61:156-161, 2001)