BACKGROUND An intro-abdominal hernia through the lesser omentum is a rare but severe condition that can cause intestinal obstruction and other life-threating complications. Until now, only a handful of cases have been reported worldwide. The diagnosis of lesser omental hernia remains challenging for emergency surgeons because of the unspecific symptoms. Therefore, there is a need for a better understanding of the characteristics of this condition. CASE PRESENTATION In this report, we described the case of a 73-year-old female patient who was diagnosed with a lesser omental hernia caused by previous total colectomy. The patient underwent emergency surgery, and the intraoperative findings revealed a 200-cm segment of the small intestine was herniated through a defected lesser omentum (approximately 3 × 4 cm) from the lesser retrogastric curvature of the stomach. Besides, we summarize the specific abdominal computed tomography (CT) findings of lesser omental hernia by reviewing the literature. CONCLUSION The lesser omental hernia is extremely rare but can cause serious complications. The cause of lesser omental hernia can be congenital or acquired. Careful examination of the small omentum before the closure of the abdomen is expected to reduce the occurrence of these abdominal surgery-associated complications. The specific features of abdominal CT in cases of lesser omental hernia, which are summarized in this article, can help other clinicians to obtain accurate diagnoses of lesser omentum hernia in the future.

中文翻译：

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完全结肠切除术后老年女性患者网膜疝较少的极少数情况。

背景技术通过小网膜的腹腔内疝是一种罕见但严重的疾病，可引起肠梗阻和其他危及生命的并发症。迄今为止，全世界仅报告了少数病例。由于症状不明确，对于急诊医师而言，小网膜疝的诊断仍然具有挑战性。因此，需要更好地了解这种情况的特征。病例介绍在本报告中，我们描述了一名73岁女性患者的病例，该患者被诊断为先前的全结肠切除术引起的网膜疝较少。该患者接受了紧急手术，术中发现，小肠200厘米段从胃小肠后弯弯曲的小网膜缺损（约3×4厘​​米）突出。此外，我们通过回顾文献总结了小网膜疝的特定腹部计算机断层扫描（CT）发现。结论小网膜疝极少见，但会引起严重的并发症。小网膜疝的原因可以是先天性的或后天性的。在腹部关闭之前仔细检查小网膜有望减少这些腹部手术相关并发症的发生。本文总结了小网膜疝患者腹部CT的具体特征，