A non-alcoholic patient with no evidence of gallstones presented with a second episode of abdominal pain and clinicopathological diagnosis of acute pancreatitis. MRCP was requested by the clinician with suspicion of pancreas divisum in this case of idiopathic pancreatitis.

MRCP shows a large dorsal duct draining the pancreas and opening into minor papilla along the medial border of second part of the duodenum. A small ventral duct is seen in the pancreatic head which joins the distal CBD to then open into major papilla along the medial border of second part of the duodenum. A small branch from ventral duct also joins the dorsal duct. No evidence of any cyst or filling defects related to ducts is seen. Pancreas divisum is a developmental anomaly with partial or complete failure of fusion of dorsal and ventral buds.