273 



Pancreatic Bladder in the Cat 



Fig. 3. Diagrammatic outline of the 

 liver mentioned In tlie text ni which two 

 gall-bladders and cystic ducts were pres- 

 ent. 



upon itself, otherwise the liver showed nothing unusual; the pancreas 

 was normal. 



It may be of interest to note that 

 two of the above-described cases came 

 from the same farm house and that 

 the third came from a neighboring 

 house. In a full brother of case II, 

 two gall-bladders were found. There 

 was a well-developed gall-bladder 

 and cystic duct connected with each 

 branch of the ductus hepaticus 

 (Fig. 3). Of these two gall-bladders 

 the one connected with the left 

 branch of the ductus hepaticus was 

 the larger and occupied the usual 

 position of the gall-bladder, while 

 the one connected with the right branch was about half the size of the 

 other and occupied a special depression on the ventrocaudal surface of 

 the right median lobe. 



The year following that in which the above-described pancreatic blad- 

 ders were found, two animals were obtained from the same neighborhood, 

 and they presented the following variations in the pancreas. In one 

 case there was a long narrow band of pancreatic tissue extending along 

 the ductus choledochus nearly as far as the gall-bladder; its duct joined 

 the duodorsal division of the ductus pancreaticus. In the other case 

 there was a duct arising from the duodorsal division of the ductus pan- 

 creaticus which ran parallel to the ductus choledochus, and in place of 

 terminating in a bladder was connected with a small truncated mass of 

 pancreatic tissue situated in the fossa vesica felleas. May not these two 

 cases explain partially the way in which the pancreatic bladders have 

 been formed? 



All three cases of pancreatic bladder differed from those of Mayer 

 and of Gage in that the duct coming from the pancreatic bladder joined 

 the duodorsal division of the ductus pancreaticus. 



In one case the pancreatic bladder was the larger and occupied the 

 usual position of the gall-bladder; in the other two cases the gall-bladder 

 was the larger and occupied its normal place. 



In two cases one or more small ducts joined the duct coming from the 

 pancreatic bladder just before it united with the duodorsal division of 

 the ductus pancreaticus. In the third case no such branch was present. 



