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KMID : 0359020090390030162
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Korean Journal of Gastrointestinal Endoscopy
2009 Volume.39 No. 3 p.162 ~ p.165
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A Case of Gastric Adenocarcinoma Mimicking a Gastrointestinal Stromal Tumor
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Choi Sung-Youn
Ghim Byoung-Kwon
Jang Seung-Hun
Min Jae-Hoon
Kim Tae-Wan
Lee Ji-Ae
Byun Sun-Jeoung
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Abstract
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Gastric adenocarcinoma is the second most common cause of cancer death worldwide, but there are some geographical differences in its incidence. Gastointestinal stromal tumor (GIST) is an uncommon disease with a wide spectrum of aggressive behavior. These two tumors have a distinct pathogenesis. GIST is frequently identified as an incidental lesion found by routine endoscopy or in resection specimens that are removed for other reasons. We report a case of a gastric adenocarcinoma mimicking GIST in a 79-year-old woman. GIST was suggested by endoscopic ultrasonography and computed tomography scanning, but gastric adenocarcinoma was confirmed by gastroduodenoscopic biopsy. We performed a subtotal gastrectomy with Billroth I, lymph node dissection and transverse colon segmentectomy, and a 15.0×7.5×5.5 cm-sized gastric tumor was confirmed pathologically. Immunohistochemistry was positive for carcinoembryonic antigen and focal weakly positive for cytokeratin7 and cytokeratin20.
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KEYWORD
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Gastrointestinal stromal tumor, Gastric adenocarcinoma
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