Meyers M A
Department of Radiology, State University of New York, Stony Brook 11794-8460, USA.
Abdom Imaging. 1995 Sep-Oct;20(5):421-4. doi: 10.1007/BF01213262.
In the medical literature, the ligament of Treitz is frequently used as a term to designate the duodenojejunal flexure, but the attributes of the structure itself are not generally known. Indeed, anatomists describe it as the suspensory muscle of the duodenum, arising from the connective tissue around the stems of the celiac and superior mesenteric arteries and inserting as nonstriated muscle commonly into the third and fourth portions of the duodenum and frequently into the duodenojejunal flexure as well. Misconceptions regarding its configuration and anatomic relationships continue to be widely illustrated. The fibromuscular structure plays an important role in the embryologic rotation of the bowel and in facilitating normal progression of contents from the extraperitoneal duodenum to the mesenteric small bowel and contributes to the effects of the superior mesenteric artery syndrome. Whereas virtually all other ligaments and mesenteries in the abdomen have been imaged, features of the ligament of Treitz render its visualization by CT or MRI challenging.
在医学文献中，Treitz韧带常被用作十二指肠空肠曲的代名词，但该结构本身的特性却鲜为人知。实际上，解剖学家将其描述为十二指肠悬肌，起自腹腔干和肠系膜上动脉根部周围的结缔组织，以平滑肌形式通常插入十二指肠第三部和第四部，也常插入十二指肠空肠曲。关于其形态和解剖关系的误解仍在广泛传播。这种纤维肌肉结构在肠道胚胎旋转以及促进内容物从腹膜外十二指肠正常推进至肠系膜小肠的过程中发挥着重要作用，并与肠系膜上动脉综合征的发生有关。尽管腹部几乎所有其他韧带和系膜都已被成像，但Treitz韧带的特征使其在CT或MRI上显影具有挑战性。
