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Key Clinical Message Pancreas divisum (PD) can be one of the causes of unexplained chronic abdominal pain. In PD, the dominant duct drains the majority of the pancreas via the minor papilla, which can be conveyed in the imaging as crossing duct sign. Abstract We report a case a of 16‐year‐old man who presented with unexplained chronic abdominal pain. Contrast‐enhanced computed tomography and magnetic resonance cholangiopancreatography showed a bulky pancreas, but his pancreatic enzymes were normal. The crossing duct sign was prominent in imaging, which confirmed the diagnosis of PD.