Abstract
Inflammatory pseudotumors imitate neoplasms on imaging but actually represent focal inflammation. We report a case of follicular pancreatitis, which is a recently recognized distinct form of mass-forming focal chronic pancreatitis pathologically characterized by lymphoid infiltration with abundant reactive germinal centers. In our patient, follicular pancreatitis manifested as a pancreatic tail mass that was resected due to imaging findings, which were suggestive of pancreatic malignancy. We performed a literature review of this rare condition and present a summary of reported imaging findings. The most distinguishing feature from pancreatic adenocarcinoma is the enhancement pattern, as follicular pancreatitis enhances more than the surrounding pancreatic parenchyma on delayed post-contrast images which is unusual for pancreatic adenocarcinoma. If this benign diagnosis is suggested on imaging, unnecessary surgery and its potential complications may be avoided.
Original language | English (US) |
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Pages (from-to) | 39-44 |
Number of pages | 6 |
Journal | Clinical Imaging |
Volume | 59 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2020 |
Externally published | Yes |
Keywords
- Chronic pancreatitis
- Follicular pancreatitis
- Mass-forming pancreatitis
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging