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they have no competing interests. Authors’ contributions KNO was involved in the mass casualty response, debriefings and drafted the manuscript. ICP was involved in the debriefings and conceptualization of the study. SJY was involved in the mass casualty response, debriefings, study design and literature search. AVR was involved in the debriefings and data collection. HCN was involved in the mass casualty response, debriefings and literature search. All authors read and approved the final manuscript.”
“Introduction Benign cystic mesothelioma of the peritoneum (BCM) is a rare intra Pritelivir molecular weight abdominal tumor with a strong predilection for the peritoneum of pelvic organs. Symptoms are not specific, and the differential

diagnosis is vast, including cystic lymphangioma, mucinous cystadenoma, cystic teratoma Rebamipide and pseudomyxoma retroperitonei. There are no evidence-based treatment strategies for BCM, and even if it is considered as a benign tumor, this tumor has a high local recurrence rate. We report a new case of BCM, which appeared as a surgical emergency. Case report A 71 year-old woman presented to the emergency department complaining of history of abdominal pain since 2 days accompanied by diarrhea. Four months prior to presentation, she noticed an increase in abdominal girth. Moreover, she developed occasional abdominal discomfort, which slowly increased frequency. The patient also developed symptoms of constipation and severe reflux which were not improved by taking laxatives and a proton pump inhibitor. Our patient was hemodynamically stable with temperature at 37.9°C, and blood pressure was 130/80 mmHg. Abdominal examination was marked by diffuse abdominal distension, and tenderness.