[Adenoma of the large intestine]

In 89 patients 107 adenomectomies in the colon have been performed with pathohistological examination of the adenomas. Fiber coloscopy of the whole colon was performed to all patients, and the results give basis for discussion of the problems of adenomas: their frequency and localization in the different parts of the colon, the relative frequency of their pathologic stages. Most often adenomas were found in the sigma (41.79-50.00%). 67 (62.92%) of the 107 adenomas studied were tubular, 24 (22.43%) were tubulovillous and 16 (14.95%) were villous. The percentage of the villous adenomas found by the authors is somewhat higher than found by other authors. Pathologic stages were found more often in the adenomas localized in the sigma. Most of the adenomas were benign--77.5%. Adenomas with dysplasia were 12.15%, with focal cancer--7.48% and with invasive cancer--2.80% of all adenomas studied.