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在150具尸体(胎儿12具,小儿138具)上观察了胸导管的起始、走行和注入静脉的情况,根据观察的结果分为五型,综合文献讨论了它们的出现率、胚胎发生和临床意义。 1.正常型胸导管,在腹腔以单干起始,上行于胸主动脉右侧,注入左颈静脉系,即一般教科书所记载的类型,出现率为84.67％。 2.双干型胸导管,在腹腔以二干起始,上行于胸主动脉两侧,在胸部的不同水平两干会合,注入左颈静脉系,出现率为10.66％,未见到注入右颈静脉系的类型。 3.分叉型胸导管,在腹腔内以单干起始,沿胸主动脉右侧上行,在第六～四胸椎水平分为2支,分别注入左、右颈静脉系,出现率为3.33％。未见到沿胸主动脉左侧上行的类型。 4.右位型胸导管,在腹腔以单干起始,上行干主动脉右侧,注入右颈静脉系,出现率为0.67％。 5.左位型胸导管,在腹控以单干起始,上行于主动脉左侧,注入左颈静脉角,出现率为0.67％。
The onset of thoracic duct and the vein injection were observed on 150 cadaveric fetuses (12 fetuses and 138 children) and were classified into five types according to the results of the observation. Their incidence rates, embryogenesis and Clinical significance. 1. Normal thoracic duct in the abdominal cavity to stem the beginning, the right side of the thoracic aorta, into the left jugular vein, which is generally recorded in the type of textbook, the incidence was 84.67%. 2. Double dry thoracic duct, beginning with two dry in the abdominal cavity, ascending on both sides of the thoracic aorta, two different levels of the thoracic convergence, into the left jugular vein, the incidence was 10.66%, did not see the right injection Jugular vein type. Bifurcation-type thoracic duct, starting from the stem in the peritoneal cavity, proceeding along the right side of the thoracic aorta, divided into two branches at the level of the sixth to the fourth thoracic vertebrae, were injected into the left and right jugular vein respectively, the incidence rate was 3.33% . No type of ascending anterior thoracic aorta was seen. Right right thoracic duct in the peritoneal solitary start up the right side of the trunk aorta into the right jugular vein, the incidence was 0.67%. Left-sided thoracic duct in the abdominal control to start alone, ascending to the left aorta, into the left jugular vein angle, the incidence was 0.67%.