A case report of endosonography used for the diagnosis of early gastric cancer and gastrointestinal stromal tumor
2014
: A 79-year-old man was referred to our hospital complaining of weight loss. Esophagogastroduodenoscopy revealed a flat, elevated lesion of 30-mm diameter located on the posterior wall of the upper gastric body. The lesion was histologically diagnosed as a well-differentiated adenocarcinoma. Endosonography showed a submucosal tumor under the carcinoma, which was highly suspicious of a gastrointestinal tumor derived from the muscle layer. Adenocarcinoma was diagnosed as an intramucosal lesion, but laparoscopic fundectomy was performed because of the submucosal tumor. Pathological diagnosis was U, less, pType 0-IIa, 18×30 mm, pT1b (SM1), tub2, int, INFa, ly0, v0, pN0, H0, P0, CYX, M0, pStage IA, gastrointestinal stromal tumors, prognostic group 1.
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