Early Gastric Cancer with an Inverted Growth Pattern Resembling a Submucosal Tumor—Report of a Case—

OUCHI Akira, ASANO Masahiko, AONO Keiya, WATANABE Tetsuya, KATO Takehiro

doi:10.3919/jjsa.75.1271

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Other Title

内反性増殖により粘膜下腫瘍様の形態を呈した早期胃癌の1例
症例内反性増殖により粘膜下腫瘍様の形態を呈した早期胃癌の1例
ショウレイナイハンセイゾウショクニヨリネンマクカシュヨウサマノケイタイオテイシタソウキイガンノ 1レイ
Early Gastric Cancer with an Inverted Growth Pattern Resembling a Submucosal Tumor^|^mdash;Report of a Case^|^mdash;

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Description

A 69-year-old man, performed proximal gastrectomy with jejunal interposition for gastric cancer 7 years previously, developed anemia. Upper gastrointestinal series showed a 2-cm protruded lesion located in the anterior wall of the residual stomach. Gastrointestinal endoscopy showed the same protruded lesion resembling a submucosal tumor with delle on the top and its biopsy showed Group I. We performed partial gastrectomy, and the pathological diagnosis was well differentiated adenocarcinoma with rupture of the muscularis mucosa and an inverted growth of atypical cells in the submucosa. Gastric cancer resembling submucosal tumor has often been reported, and these are generally classified into medullary carcinoma with lymphoid stroma, carcinoma with a solid growth, carcinoma with localized fibrosis, carcinoma from heterotopic gastric mucosa and mucinous carcinoma. To our best knowledge, early gastric cancer with an inverted growth pattern resembling submucosal tumor is rare. There exists gastric cancer which entails a problem in distinction from non-epithelial tumor like in this case. Surgical resection is recommended for such a gastric submucosal tumor as might be difficult to examine sufficiently.

Journal

Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association)

Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) 75 (5), 1271-1275, 2014

Japan Surgical Association

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