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Endoscopic diagnosis of extensive superficial esophageal cancer



Endoscopic diagnosis of extensive superficial esophageal cancer



Stomach & Intestine 30(8): 1011-1020



Clinico-pathological features of extensive superficial esophageal cancer which is defined as type O-II cancer more than 5 cm in diameter was studied in comparison with the same type of cancer less than 5 cm in diameter. Among superficial esophageal cancers resected in our department, there were six cases (5.6%) of extensive superficial esophageal cancer. The lesions in all six cases had whole-circle spread. Three of them were m-3 cancer and the rest were sm-2 cancer. The deeper part of invasion was found in several points in the small area near the center of the lesion. Ductal invasion and lymphatic permeation were positive multifocally. Reliability of pre-operative endoscopic diagnosis was studied in comparison with pathological findings. It is important to use toluidine blue and iodine double staining method for detection of slight erosive components or shallow elevation or depression on the surface of the lesion. However, it is difficult to make a precise diagnosis of the depth of invasion. There was a tendency to make a diagnosis underestimating the depth of invasion.

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Accession: 008603479

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