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Studies on depth of invasion of depressed type of gastric cancer with endoscopy and endoscopic ultrasonography



Studies on depth of invasion of depressed type of gastric cancer with endoscopy and endoscopic ultrasonography



Gastroenterological Endoscopy 32(3): 513-519



Sixty cases of depressed type of early gastric cancer and depressed type like advanced cancer were studied. The shape of converging fold was classified into four types under grade of deformity type A, B1, B2, and C in order of slight to severe degree. Fibrosis of the base of the ulcers were diagnosed with EUS. In each type of converging folds, the depth of invasion of gastric cancer was studied. As a result, in the same type of converging folds, the invasion of gastric cancers without fibrosis tended to be deeper than that of gastric cancers with fibrosis. The depths of invasion in cases with fibrosis were as follows: In A and B1 type, depths of invasion of cancer and the spreads of fibrosis in B1 type were deeper than those in A type. In B2 type, many cases of B2 type with ul-II, ul-III were of sm cancer, but many cases of B2 type with ul-IV were of m cancer. As a result, the accuracy rate of the diagnosis of the depth invasion of gastric cancer has improved in 55% to 77%. As mentioned above, the diagnostic ability of the depth of invasion of gastric cancer with fibrosis was improved by using EUS findings in addition to endoscopic findings.

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Accession: 007831637

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