Sialomucin at the Resection Margins and Likelihood of Local Recurrence of Carcinoma of the Rectum after Anterior Resection

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Abstract
The histochemical changes in mucin at the postoperative resection margins in carcinoma of the upper and middle third of the rectum after anterior resection were studied retrospectively in 52 patients. The sialomucinous change was most likely to occur at the intestinal margins of those patients who had tumour recurrence (P < 0.001). The histological types of tumour, degree of differentiation, Duke''s stages and their distance from the anal verge were virtually the same in patients with and without tumour recurrence. By using high iron diamine-alcian blue staining technique we identified patients with higher risk conditions of tumour recurrence after anterior resection. This technique should increase the likelihood of a cure for patients with recurrent carcinoma of the rectum after anterior resection.