Li J, Jiang B
Department of Histology and Embryology, Zhejiang Medical University, Hangzhou, China.
Funct Dev Morphol. 1993;3(2):129-32.
Three-dimensional organization of diaphragmatic lymphatics in five fetuses was studied by the lymphatic casts of scanning electron microscope. A new resin consisting of piperylene, acrylic ester and styrene was used instead of Mercox. The diaphragmatic lymphatics formed rich networks in the muscular portion. There were two layers of lymphatic networks, i.e. the submesothelial network and the deeper network and only one layer in the tendinous portion of the diaphragm. The lymphatic networks were more dense in the tendinous portion than these in the muscular portion. The lymphatics were mainly composed of main lymphatic vessels and anastomosing side branches. The side branches often communicated the submesothelial network with the deeper network in the muscular portion. The main lymphatics were connected at regular intervals by way of transverse side branches in the tendinous portion. Numerous constrictions and notches showing the presence of lymphatic valves were often found on the cast surface of the main lymphatic vessels and the side branches. The lymphatics extended as far as the terminal branches, i.e. the lymphatic lacunae recognized as broad, flattened and blind-ended. In the present study, three-dimensional organization of human diaphragmatic lymphatics was for the first time described. It was suggested that the passageway of the lymph flow out of the peritoneal cavity may be explained. From the peritoneal stomata, the lymph of the peritoneal cavity flowed into the channels under the peritoneum, then into the lymphatic lacunae and finally into the lymphatic networks under the diaphragmatic pleura.
通过扫描电子显微镜淋巴管铸型研究了5例胎儿膈肌淋巴管的三维结构。使用了一种由间戊二烯、丙烯酸酯和苯乙烯组成的新型树脂代替Mercox。膈肌淋巴管在肌肉部分形成丰富的网络。有两层淋巴管网，即间皮下网络和更深层的网络，而在膈肌的腱性部分只有一层。腱性部分的淋巴管网比肌肉部分的更密集。淋巴管主要由主要淋巴管和吻合侧支组成。在肌肉部分，侧支常使间皮下网络与更深层的网络相通。在腱性部分，主要淋巴管通过横向侧支以规则的间隔相连。在主要淋巴管和侧支的铸型表面经常发现许多显示存在淋巴瓣膜的狭窄和切迹。淋巴管一直延伸到终末分支，即被认为是宽阔、扁平且盲端的淋巴陷窝。在本研究中，首次描述了人膈肌淋巴管的三维结构。提示了腹腔淋巴流出的通道。腹腔淋巴从腹膜小孔流入腹膜下通道，然后进入淋巴陷窝，最后进入膈胸膜下的淋巴网络。
