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Should 'doughnut' histology be routinely performed following anterior resection for rectal cancer?

Stapled low anterior resection is widely employed in the treatment of rectal adenocarcinoma. The technique yields two tissue 'doughnuts' which are often submitted for histological examination. This process is labour intensive and not part of the minimum data set for colorectal cancer histopathology reports. A consecutive series of anterior resection doughnuts from 125 patients was reviewed retrospectively to assess the impact of doughnut pathology on the management of patients. Four doughnuts had a histological abnormality reported but none of these altered treatment. Routine histological examination of 'doughnuts' is not beneficial to the management of patients undergoing surgery for rectal adenocarcinoma.