The dissection procedure for right colon cancer involved removal of 10 cm of normal bowel both proximal and distal to the lesion and, in the central direction, dissection of regional lymph nodes along the main trunk artery up to main nodes, i.e., nodes situated anterior to the surgical trunk, which was confirmed to have a therapeutically satisfactory benefit. Infrapyloric lymph nodes must be dissected when metastasis to the nodes is suspected. In cases of cecal or ascending colon cancer in which the middle colic artery is no longer the main trunk artery, a right hemicolectomy with resection of only the right branch of the middle colic artery will usually suffice.
These results suggest that the peristomal skin is irritated by repeated peeling, resulting in physical damage to the horny layer of the skin. The presence of papules and erosion was not associated with the adhesive force of skin barriers. This finding suggests that these changes are associated with an inflammatory process, possibly caused by chemical substances within the skin barrier.
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