TWO ANOMALOUS FOKMS OF DUODENAL POUCHES. 



Ill 



description of the anatomy of the Vaterian region of the duo- 

 cleiium, Letulle and Xattan-Larrier ^ describe four types of the 





F]G. 1. — Bifid duodenal pouch ; the orifices of the two pouches in the duodenum 

 are deeply shaded. The openings of the common bile duct and of Wirsung's 

 duct are seen on a papilla, which is continuous with the fraenum of mucous 

 membrane separating the two pouches. 



Fig. 2. — The outside of the duodenum showing two pouches, which are quite 

 distinct, the cut end of Wirsung's duct, and the common bile duct. 



openings of the common bile and Wirsung's ducts. The fourth, 

 in which the two canals open simultaneously at the same level 



1 Bull. Soc. Anat. Paris, 1899, p. 987. 



