Department of Radiology, University of California-San Diego Medical Center, 200 West Arbor Drive, San Diego, CA 92103, USA.
Clin Imaging. 2023 Sep;101:22-31. doi: 10.1016/j.clinimag.2023.05.014. Epub 2023 Jun 1.
The greater omentum is a unique anatomical structure that serves a critical function in the containment of inflammatory and infectious processes within the abdominal cavity. It is also a common site of involvement by metastases, as well as the primary location for various pathologic lesions of clinical significance. Its fibroadipose composition, large size, and position in the most anterior aspect of abdomen allow accurate visualization of the greater omentum on CT and MR images. Careful evaluation of the greater omentum can provide important clues to the diagnosis of the underlying abdominal disorder. The aim of this article is to present the normal appearance of the greater omentum, and the wide spectrum of its pathological features as demonstrated on CT and MRI of the abdomen.
大网膜是一种独特的解剖结构，在腹腔内的炎症和感染过程的控制中起着关键作用。它也是转移的常见受累部位，也是各种具有临床意义的病理病变的主要部位。其纤维脂肪组成、大尺寸以及在腹部最前侧的位置允许在 CT 和 MR 图像上准确地可视化大网膜。仔细评估大网膜可以为腹部疾病的诊断提供重要线索。本文旨在介绍大网膜的正常表现，以及其在腹部 CT 和 MRI 上显示的广泛的病理特征。
