Jeon Yong Sun, Lee Ju Won, Cho Soon Gu
Department of Radiology, Inha University Hospital, 3-ga, Shinheung-dong, Choong-gu, Incheon, 400-711, Republic of Korea.
Surg Radiol Anat. 2009 Jan;31(1):3-11. doi: 10.1007/s00276-008-0381-y. Epub 2008 Jul 4.
The mesentery and the omentum are the main fatty tissues in the abdomen. Various pathologic conditions such as benign and malignant neoplasm, inflammatory process, and traumatic lesions may involve the mesentery and the omentum. Differentiation of some lesions, whether they are in the mesentery or the omentum, is very important for accurate diagnosis and proper treatment. Vascular structures are important anatomical landmarks to determine the intraperitoneal fat plane accurately. The superior mesenteric artery and vein run through the small bowel mesentery. The middle colic artery and vein run through the transverse mesocolon. The sigmoid and superior rectal vessels run through the sigmoid mesocolon. Among various neoplastic diseases that involve the mesentery and the omentum, secondary neoplasms are more frequent than primary ones. Sclerosing mesenteritis, tuberculosis, and traumatic lesions may involve the mesentery. Tuberculosis, traumatic lesions, infarction, and torsion can occur in the omentum. Multidetector computed tomography (MDCT) images are valuable for the exact location of pathologic conditions by use of multiplanar reformatted images.
肠系膜和网膜是腹部主要的脂肪组织。各种病理状况，如良性和恶性肿瘤、炎症过程及创伤性病变，都可能累及肠系膜和网膜。区分某些病变是位于肠系膜还是网膜，对于准确诊断和恰当治疗非常重要。血管结构是准确确定腹膜内脂肪平面的重要解剖标志。肠系膜上动静脉穿过小肠系膜。中结肠动静脉穿过横结肠系膜。乙状结肠和直肠上血管穿过乙状结肠系膜。在累及肠系膜和网膜的各种肿瘤性疾病中，继发性肿瘤比原发性肿瘤更常见。硬化性肠系膜炎、结核和创伤性病变可累及肠系膜。结核、创伤性病变、梗死和扭转可发生于网膜。多排螺旋计算机断层扫描（MDCT）图像通过多平面重组图像对于病变的确切定位很有价值。
