Abstract
Purpose
Solid-pseudopapillary tumor (SPT) of the pancreas is a rare, low-grade malignancy,
which mostly occurs in adolescent and young adult females. The goal of this study
was to retrospectively analyze the magnetic resonance (MR) imaging presentation of
SPT of the pancreas.
Methods
We retrospectively reviewed the preoperative MR imaging examinations and the medical,
surgical and histopathological records of 21 patients who underwent surgery for SPT
of the pancreas. MR imaging included T1-weighted, T2-weighted, and gadolinium chelate-enhanced
MR imaging. In addition, 10 patients had diffusion-weighted (DW) MR imaging. MR examinations
were retrospectively reviewed for location, size, morphological features and signal
intensity of the tumors.
Results
Nineteen women and 2 men (median age, 23 years; range, 14–59) were included. Seven
patients (7/21; 33%) presented with abdominal symptoms. The median largest tumor diameter
was 53mm (range, 32–141 mm). SPTs were located in the pancreatic head, body, and tail
in 9 (9/21; 43%), 5 (5/21; 24%) and 7 (7/21, 33%) patients, respectively. All patients
(21/21; 100%) had a single SPT. SPTs were more frequently oval (12/21; 57%), predominantly
solid (12/21; 57%), fully encapsulated (16/21; 76%), larger than 30 mm (21/21; 100%),
hypointense on T1-weighted MR images (21/21, 100%), hyperintense on T2-weighted MR
images (21/21; 100%) and with an enhancing capsule after gadolinium-chelate administration
(21/21; 100%).
Conclusions
There is trend of appearance for SPT of the pancreas on MR imaging but that variations
may be observed in a number of cases. SPT uniformly presents as a single, well-demarcated
and encapsulated pancreatic mass.
Keywords
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Article info
Publication history
Published online: February 10, 2014
Accepted:
January 19,
2014
Received in revised form:
January 17,
2014
Received:
December 9,
2013
Identification
Copyright
© 2014 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
