Hines John, Rosenblat Juliana, Duncan Dameon R, Friedman Barak, Katz Douglas S
Department of Radiology, Long Island Jewish Medical Center, 270-05 76th Ave, New Hyde Park, NY 11040, USA.
Emerg Radiol. 2013 Apr;20(2):155-61. doi: 10.1007/s10140-012-1095-3. Epub 2012 Dec 5.
The purpose of this article is to illustrate and discuss the various etiologies of perforation of the mesenteric small bowel and associated findings on abdominal CT. Perforation of the mesenteric small bowel is an uncommon cause of an acute abdomen and can be due to various etiologies. In underdeveloped countries, infection is probably the most common cause, while in industrialized nations, perforation may be due to Crohn disease, diverticulitis, foreign body, trauma, tumor, mechanical obstruction, primary ischemic event, or iatrogenic causes. CT is usually the initial imaging examination in patients with an acute abdomen and is sensitive in diagnosing small bowel perforation. CT findings in the setting of small bowel perforation are often subtle, but when present, may help the radiologist determine a specific cause of perforation. The aims of this pictorial essay are to review the various causes of mesenteric small bowel perforation and to discuss and illustrate the CT findings that can help arrive at the diagnosis.
本文旨在阐述和讨论肠系膜小肠穿孔的各种病因以及腹部CT的相关表现。肠系膜小肠穿孔是急腹症的少见病因，可由多种病因引起。在欠发达国家，感染可能是最常见的病因，而在工业化国家，穿孔可能归因于克罗恩病、憩室炎、异物、创伤、肿瘤、机械性梗阻、原发性缺血事件或医源性病因。CT通常是急腹症患者的初始影像学检查，对诊断小肠穿孔很敏感。小肠穿孔时的CT表现往往很细微，但一旦出现，可能有助于放射科医生确定穿孔的具体病因。本图谱文章的目的是回顾肠系膜小肠穿孔的各种病因，并讨论和阐述有助于做出诊断的CT表现。
