Resection of the parietal cells, a modification of the generally known Wangensteen's tubular resection, was carried out in 8 patients with duodenal ulcer. The greater curvature of the stomach was removed to the left of the line joining the prepyloric part and the His angle. The operation was not devoid of technical difficulties, especially in well-nourished patients with high position of the cardia. The immediate postoperative course was uneventful. The ulcer was not found in any of the patients by endoscopy conducted in periods of 16 to 36 months, all of them noted subjective improvement after the operation. The results allow the operation to be recommended for the treatment of duodenal ulcer complicated by penetration and hemorrhages, when distal resection is a considerable risk.