新生儿肺的淋巴管

LYMPHATICS IN THE LUNGS OF STILLBORN INFANTS

本文对40例新鲜的新生儿肺,采用色素乳胶注射制成塑型标本结合注射普鲁士兰分别制成连续组织切片的方法,对肺淋巴管的分布特点进行了详细的观察。肺的淋巴管分为胸膜下浅层淋巴管及深层淋巴管,并证实肺韧带内亦有淋巴管和淋巴结存在。深淋巴管基本可归纳为间质~肺静脉淋巴管系及支气管~肺动脉淋巴管系。两者之间有大量的侧支吻合,其吻合部位多见于肺内各级支气管的分叉处。最远处毛细淋巴管起于终末细支气管的分叉处。肺内淋巴管的瓣膜多数为单瓣,多见于胸膜下及肺小叶外围的淋巴管内;肺门附近次之;而肺中央的大部特别稀少。

We observed 40 stillborns.Macroscopic and serial or sample microscopic sections were cut and stained with hematoxylin and eosin.The pulmonary lymphatics were divi-ded into two plexus systems:the superficial(subpleural)and the deeper(intrapulmo-nary).We comfirmed that pulmonary ligament do have lymphatics and lymph nodes.A large number of valves were found in the superficial lymphatics and in those surroun-ding the bronchi and pulmonary blood vessels near the hilar.On the other hand,the lymphatics found in the central parts of lungs are equiped with few valves.