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Purpose: To evaluate the performance of R2* in distinguishing intrapancreatic accessory spleens (IPASs) from pancreatic neuroendocrine tumors (PNETs).

Methods: Two radiologists (R1 and R2) retrospectively reviewed the MRIs of 20 IPAS and 20 PNET patients. IPASs were diagnosed with uptake on 99mTc labeled heat-damaged red blood cell scintigraphy or characteristic findings on CT/MRI and ≥ 12 month-long-stability.

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Introduction: Accessory spleens are a common anatomical variant, consisting of ectopic splenic tissue present in different locations in the peritoneal cavity. Typically asymptomatic, the presence of these tissue grows to be of clinical importance when complicated by infarction, rupture, or torsion.

Presentation Of Case: We report the case of a 36-year-old female that presented to the Emergency Department for diffuse abdominal pain and was found to have a partially ruptured splenule secondary to a venous infarct on abdominal computed tomography scan.

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Mimics of pancreatic neoplasms at cross-sectional imaging: Pearls for characterization and diagnostic work-up.

Curr Probl Diagn Radiol

December 2024

Department of Diagnostic Radiology, Queen Elizabeth II Health Sciences Centre and Dalhousie University. Victoria General Building, 3rd floor, 1276 South Park Street, Halifax, Nova Scotia B3H 2Y9, Canada. Electronic address:

Interpreting imaging examinations of the pancreas can be a challenge. Several different entities can mimic or mask pancreatic neoplasms, including normal anatomic variants, non-pancreatic lesions, and both acute and chronic pancreatitis. It is important to distinguish these entities from pancreatic neoplasms, as the management and prognosis of a pancreatic neoplasm, particularly adenocarcinoma, have considerable impact on patients.

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