Background/Aims: Portal hypertension (PH) is a syndrome characterized by chronic increase in the pressure gradient between the portal vein and inferior vena cava. Previous studies have suggested an increased frequency of antral elevated erosive gastritis in patients with PH, as well as an etiologic association; however, there has not been any histological evidence of this hypothesis to date. Our aim was to evaluate the histological features found in elevated antral erosions in patients with portal hypertension. Methods: Sixty-nine patients were included; 28 with and 41 without PH. All patients underwent endoscopy, and areas with elevated antral erosion were biopsied. Results: In the PH group, 24 patients had inflammatory infiltration with or without edema and vascular congestion, and 4 patients had no inflammation. In the group without PH, all patients showed inflammatory infiltration of variable intensity. There was no statistical significance between the two groups in the presence of Helicobacter pylori. There as a histological similarity between the two groups, if PH patients without inflammation were excluded; however, more edema and vascular congestion were observed in the PH group (p=0.002). Conclusions: The findings show that elevated antral erosions in patients with PH have more evident edema and vascular congestion in addition to lymphocytic infiltration. (Korean J Gastroenterol 2017;69:278-282)

exposing the lesion in laparoscope, risk of massive bleeding and the difficulty of managing intra-operative emergencies. This procedure was performed routinely in our institute. The aim of this study was to report outcomes of laparoscopic resection of right posterior lobe. Methods: 20 Consecutive patients who underwent laparoscopic resection of right posterior lobe in Sir Run Run Shaw Hospital. The patients' characteristics, surgical features, postoperative course, and so on were reviewed. All procedures were performed under general anesthesia with the patients in the left side position. Liver parenchyma was transected with the special instrument of laparoscopic peng's multifunctional operative dissector. Results: No peri-operative death. 5 patients were converted to open hepatectomy. 3 Complications occurred. The mean operating time was 217.3 ml. The mean volume of intraoperative blood loss was 698.3 ml and 6 patients had intraoperative blood transfusion. The length of post-operative hospital stay was 8.4 days. Conclusion: laparoscopic resection of right posterior lobe was supposed to be a safe and effective procedure according to current results in our institute.