PMC2731436_01
Conventional view of a 0-IIa + IIc lesion located in the rectosigmoid colon. A definite depressed margin and irregular reddened surface of depression suggested submucosal deep invasion.
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A 79-year-old male was diagnosed to have a lesion of 28 mm in diameter located in the rectosigmoid colon, with a 0-IIa + IIc macroscopic type (Figure 1).
Direct observation of the submucosal and muscle layers is possible due to the utility of distal attachment.
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Tokyo, Japan) providing a direct observation of the sm and muscle layers (Figure 2). The resection left an ulcer bed without muscle damage or bleeding (Figure 3). The en-bloc resection and removal of the specimen was completed in approximately 80 minutes without any complication (Figure 4).
Ulcer bed after en-bloc resection of the lesion. There is no muscle damage or bleeding.
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Tokyo, Japan) providing a direct observation of the sm and muscle layers (Figure 2). The resection left an ulcer bed without muscle damage or bleeding (Figure 3). The en-bloc resection and removal of the specimen was completed in approximately 80 minutes without any complication (Figure 4).
A view on the en-bloc resected specimen. The surgical margin is visible.
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Tokyo, Japan) providing a direct observation of the sm and muscle layers (Figure 2). The resection left an ulcer bed without muscle damage or bleeding (Figure 3). The en-bloc resection and removal of the specimen was completed in approximately 80 minutes without any complication (Figure 4).
Histopathological analysis of the resected specimen showed a well-differentiated adenocarcinoma, and the depth of invasion was sm 2500 mum with negative lateral and vertical margins.
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Histopathological analysis of the resected specimen showed a well-differentiated adenocarcinoma, and the depth of invasion was sm 2500 mum with negative lateral and vertical margins (Figure 5).