- •XGP is a very rare form of chronic pancreatitis and in a majority of cases is misdiagnosed as a primary pancreatic neoplasm.
- •XGP can present as a solid or a cystic lesion and typically shows hypoattenuation on CT, high T2 signal, and low T1 signal.
- •XGP is often FDG-avid on PET and can show increased FDG uptake throughout or at the periphery—corresponding to wall uptake.
- •A relatively thick and enhancing wall is usually identified which has an infiltrative appearance about half of the time.
- •XGP should be considered when a pancreatic mass has an infiltrative appearing wall and involves surrounding structures.
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