Melo, RyanPedro, Luís MSilvestre, LuísFreire, José P.Pereira, CláudiaFernandes, Ruy Fernandes eFernandes, José Fernandes e2020-11-102020-11-102016International Journal of Surgery Case Reports 25 (2016) 207–211http://hdl.handle.net/10451/44828© 2016 The Authors.Published by Elsevier Ltd on behalf of IJS Publishing Group Ltd. This is an open access article under the CCBY-NC-NDlicense(http://creativecommons.org/licenses/by-nc-nd/4.0/)INTRODUCTION: Symptomatic chronic mesenteric ischemia (CMI) is an uncommon condition that usually presents with intestinal angina, sitophobia and unintentional weight loss. Acute acalculous cholecystitis (AAC) has very rarely been described in the settings of CMI. PRESENTATION OF CASE: We describe a case of a 73 year old man that developed an AAC as a complication of CMI. The patient underwent a simultaneous cholecystectomy and open aortic revascularization which was successful. At 24 months of follow-up the patient is clinically well and regained weight.DISCUSSION: Ischemia has been considered an important etiology for the development of AAC. In the settings of CMI, an AAC might develop has a herald sign of progression to acute mesenteric ischemia and infarction, as the cystic artery is a terminal artery with no collateral network. Performing the aortic revascularization simultaneously with the cholecystectomy might prevent this possible fatal outcome. CONCLUSION: This case reinforces aortic and visceral occlusive disease as a possible risk factor for thedevelopment of AAC, and discusses the treatment controversies when managing both conditions simultaneously.engChronic mesenteric ischemiaAcute-on-chronic mesenteric ischemiaAcute acalculous cholecystitisOpen aortic revascularizationCase reportjournal article10.1016/j.ijscr.2016.06.0442210-2612