Cine barium-meal studies have been carried out on 29 patients following a Heineke-Mikulicz pyloroplasty and on 13 after a Finney pyloroplasty. All patients had a vagotomy and all were asymptomatic. In both groups, constant gastroduodenal deformity was observed: in those who had a Finney procedure, a translucent line indented the barium-filled stomach, probably owing to a ridge of tissue at the suture line; in those patients who had a Heineke-Mikulicz procedure, large pseudodiverticula were observed in the pyloric canal and muscular impressions indented the canal. The pseudo-diverticula occur in the normal postoperative state but must be differentiated from peptic ulcers.