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How long is a 6 cm margin of resection in the stomach?

In order to assess whether the gastric wall undergoes some change in length during gastrectomy operation for cancer, we measured the variation in length of the anterior gastric wall in 25 patients. The first measurement was made at the beginning of laparotomy by placing two stitches on the anterior gastric wall and registering the distance between them. A second and a third measurement were recorded when the stomach was fully isolated just before its transection and subsequently on the anatomic table. The results indicate that the usual recommendations made by pathologists to maintain a 6 cm margin of tissue clearance proximally to the cephalic edge of the tumour, can be safely followed by the surgeons who can correctly assess, during operation, the distance between tumour and the desirable line of transection since no misleading reduction in size of the resected specimen takes place.