A Case of Differentiated Early Adenocarcinoma of the Stomach Forming Protruded Type Lesion

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  • A Case of Poorly Differentiated Early Adenocarcinoma of the Stomach Forming a Protruded Type Lesion

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<jats:p><jats:bold>Abstract: </jats:bold> A case of poorly differentiated adenocarcinoma (undifferentiated type by Nakamura, diffuse type by Lauren) of the stomach infiltrating the submucosa and forming a protruded type lesion is reported. A 60‐year‐old man underwent endoscopic examination, which revealed a protruded type lesion with a nodular configuration and shallow ulceration accompanied by slough along the greater curvature of the upper gastric body, which was proved to be poorly differentiated adenocarcinoma by endoscopic biopsy. The patient underwent radical surgery, consisting of total gastrectomy with pancreato‐splenectomy. Macroscopic observation of the resected specimen revealed a protruded type lesion, measuring 30 mm in diameter, in the fundus along the greater curvature. The surface of the lesion had an irregular and nodular configuration with erythema and superficial erosions. Although, in the setting of early gastric cancer, poorly differentiated adenocarcinomas are usually macroscopically depressed or ulcerated type, this case presented a protruded type lesion (polypoid type). We report this unusual case because of its extremely important implications in the discussion of gastric cancer therapy.</jats:p>

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