[An unusual complication after the partial resection of the ascending duodenum of a cow].

In a heifer portions of the ascending duodenum, which had been perforated by an obstructing phytobezoar, were resected. This resulted in an unexpected complication. The shortened ligamentum duodenocolicum exerted steady traction on the descending colon. This traction caused a kink and finally resulted in a total obstruction of the colon. The pathogenesis of this complication is illustrated. Surgical--possibly preventive--procedures are discussed.