Duct penetrating sign

The duct penetrating sign is a radiographic sign which can be useful in differentiating between focal pancreatitis (inflammatory pancreatic mass) from pancreatic carcinoma.

A positive sign is when a mass is penetrated by an unobstructed pancreatic duct; this makes focal pancreatitis the most likely cause rather than pancreatic carcinoma. This sign is best appreciated on MRCP (or ERCP).

The duct-penetrating sign on MRCP is more helpful in differentiating between these two entities than a delayed enhancement pattern on CT or MRI.

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Article information

rID: 34265
Section: Signs
Synonyms or Alternate Spellings:
  • Duct-penetrating sign

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