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Endoscopic findings of type iib early gastric cancer and minute cancer



Endoscopic findings of type iib early gastric cancer and minute cancer



Stomach & Intestine (Tokyo) 18(6): 603-609



Studies were done on 13 IIb lesions: 26 minute cancer of < 5 mm and 12 of accompanied IIb. The classification of the IIb lesions by size was as follows: 7 of 13 (53.8%) were minute cancer, and only 4 were of sizes over 1 cm. The diagnosis of IIb lesions over a certain size seems to be clinically important. For this study, therefore, minute cancer was classified as one group and relatively large IIb, including accompanied IIb, as another group. Of the 26 lesions in the 25 cases of minute cancer, 9 lesions in 9 cases were correctly diagnosed before surgery, 7 of which were minute IIc of U1 (-) [ulcer grade], which were endoscopically observed as cloudy red spots. These had to be further differentiated from benign erosion. The differences from benign erosion were the irregularity, unevenness and somewhat cloudy red illuminations. With regards to accompanied IIb, it is necessary to carefully do the biopsy. Concerning the relatively wide range of IIb, undifferentiated carcinoma located in the middle layer of lamina propria mucosae, which does not expose itself on the surface, is extremely difficult to diagnose presently by endoscopy. Generally speaking, with regards to type IIb early gastric cancer and minute cancer, the color finding has a great importance. However, there remain many more problems yet to be solved or conditions to be improved in matters such as film, development and pretreatment of the patient.

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Accession: 005359273

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