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.
Best description of positive sign is visualisation of a mass penetrated by an unobstructed pancreatic duct makes focal pancreatitis the most likely cause rather than pancreatic carcinoma. This sign is best appreciated by MRCP or more invasive modalities such a ERCP.
The duct-penetrating sign on MRCP is more helpful in differentiation between these entities than delayed enhancement pattern on CT or MRI.
- 1. Leyendecker JR, Elsayes KM, Gratz BI et-al. MR cholangiopancreatography: spectrum of pancreatic duct abnormalities. AJR Am J Roentgenol. 2002;179 (6): 1465-71. doi:10.2214/ajr.179.6.1791465 - Pubmed citation
- 2. Ichikawa T, Sou H, Araki T et-al. Duct-penetrating sign at MRCP: usefulness for differentiating inflammatory pancreatic mass from pancreatic carcinomas. Radiology. 2001;221 (1): 107-16. doi:10.1148/radiol.2211001157 - Pubmed citation