THORACIC DUCT IN MAN 243 



A cisterna chyli is present in 50 per cent of my cases (figs. 

 14-18, 20, 22, 24, 26, 28, 29) from which results it is evident that 

 a cisterna chyli is not present as often as one would suspect 

 from the descriptions of the thoracic duct in modern anatomical 

 textbooks. 



In 59.085 per cent of my cases, there is an insula associated 

 with the thoracic duct (figs. 10, 12, 13, 15, 17, 18, 20, 21 , 25, 26, 

 28, 29, 30). Haller ('75) considered this the normal condition. 



The thoracic duct terminates singly in 77.265 per cent of my 

 cases (figs. 10-16, 18-28) ; doubly, in 9.09 per cent of the cases 

 (figs. 17, 29); triply, in 9.09 per cent of the cases (figs. 11, 30; 

 and quadruply, in 4.545 per cent of the cases (fig. 31). 



The thoracic duct terminated in the left subclavian vein in 

 59.085 per cent of my cases (figs. 10, 13-17, 19, 20, 22, 27, 28, 31) ; 

 in the left innominate in 4.545 per cent of the cases (fig. 23) ; 

 in the left anguhis venosus in 22.725 per cent of the cases (figs. 

 12, 18, 21, 24, 25); in the left internal jugular in 4.545 per cent 

 of the cases (fig. 26) ; in the right internal jugular in 4.545 per 

 cent of the cases (fig. 30) ; in the left internal jugular and left 

 angulus venosus in 4.545 per cent of the cases (fig. 29) ; and in 

 the left internal jugular and left vertebral vein in 4.545 per cent 

 of the cases (fig. 11). 



In conclusion, it is a pleasure to thank Dr. Abram T. Kerr for 

 many valuable suggestions and continued interest throughout 

 the course of this work. 



BIBLIOGRAPHY 



Breschet, G. 1836 Le systeme lymphatique. 



Butler, C. S. 1903 An abnormal thoracic duct. Journal of Medical Research, 



Boston, vol. 10, p. 154. 

 Cameron, S. 1903 Case of right aortic arch with abnormal disposition of the 



left innominate vein and thoracic duct. Lancet, London, vol. 2, p. 670. 

 Cousin, G. 1898 Anomalies du canal thoracique. Bull. Soc. Anat., Paris, 



tome 73, p. 334. 

 Cruickshank, W. 1790 Anatomj' of the absorbing vessels. 

 DiEMERBROECK, T. 1685 Opera omnia anatomica et medica. 

 EuSTACHius, B. 1564 Opuscula anatomica, Venetiis. 

 Fleischmann, G. 1815 Leichenoffnungen. 



