Without the proper fusion of both ducts the majority of the pancreas drainage is mainly through the accessory papilla.

Three different variations in pancreas divisum have been described: the first is the classic example of pancreas divisum in which the ventral duct is visualized but there is total failure of fusion; the second variation is with the absence of a ventral duct; and the third variation is when there is very basic communication between the two ducts.

[1] Pancreatitis is a major complication of pancreas divisum.

[2] This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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