PMID: 25755816Mar 11, 2015Paper

Synchronous of gastric adenocarcinoma and schwannoma: report of a case and review of literatures

International Journal of Clinical and Experimental Pathology
Lian-He YangEn-Hua Wang

Abstract

We presented a case of 80-year-old male with long term stomachache, marasmus and anaemia. Endoscopic evaluation suggested the malignant ulcerative tumor on the Gastric antrum, and biopsy confirmed the diagnosis of gastric adenocarcinoma. Surprisingly, in resected specimen the pathologist found a nodule just below the ulcer with clear boundary and gray-yellow section. Histologically, the whole lesion was composed with adenocarcinoma area and spindle tumor cells area. In the spindle tumor cells area, the cells with round or oval nuclei, eosinophilic cytoplasm, and these cells showed bundle or fence-like arrangement. Immunohistochemistry study presented positive expression of vimentin, S-100 and GFAP, negative expression of SMA, desmin, CD34, CD117 and Dog-1, which suggested the diagnosis of co-occurrence of gastric adenocarcinoma and schwannoma. To our knowledge, it is an extremely rare case that only two cases have been reported.

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