Canine pancreatic duct dynamics

This amazing video shows a wave of contraction passing along a dog’s accessory pancreatic duct towards the minor papilla on the descending duodenum:

With still images this is a ‘bolus’ of pancreatic juice in transit and waiting to be released into the duodenum:

Little has been written about pancreatic duct function in cats and dogs. However, they appear to have propulsive smooth muscle action:

At least in people accessory duct outflow appears to be regulated by a sphincter mechanism akin to the sphincter of Oddi.

That may explain why pancreatic juice accumulates into a ‘bolus’before expulsion into the duodenum in the video.

15/04/2016 roger Internal medicine, ultrasonography, Uncategorized accessory pancreatic duct, canine, dog, pancreatic duct, ultrasonography, ultrasound

Bob Hylands 07/02/2017 at 12:02 am Reply

One of my favorite videos demonstrated multiple pancreatic calculi rolling within the duct in response to the flow of the juices. You could clearly observe that there was a directional flow to the fluid towards the papilla. Unfortunately , it is one of the few videos that I lost tract of where I stored it . Of all the sequences that I had to loose it had to be that one. One day I will retrieve it again and share it with you. It was beautiful.

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