Abstract
Objective
To evaluate and describe computed tomographic (CT) and endoscopic (ES) imaging findings
in patients with pathologically confirmed upper gastrointestinal (GI) tract heterotopic
pancreas (HP).
Methods
Findings from imaging examinations in 11 patients with pathologically confirmed HP
were retrospectively reviewed (CT images obtained from 11 patients and ES images from
6 patients were available for review). Two radiologists evaluated lesion location,
size, shape and border as well as growth pattern, enhancement pattern, enhancement
grade and number of tumors. The presence of surface dimpling, prominent enhancement
of overlying mucosa, and low intralesional attenuation were also evaluated.
Results
HP in the upper GI tract showed typical features in CT imaging: submucosal masses,
ill-defined borders, endoluminal growth patterns, bright enhancement similar to the
normal pancreas, surface dimpling and low intralesional attenuation. Endoscopic photographs
manifested an endoluminal, ill-defined, submucosal mass in the upper GI tract wall,
typically with central umbilication. The LD (long diameter)/SD (short diameter) ratios
were found to be significantly different between HP in the stomach and HP in the duodenum
(P<.05 for each finding). In addition, HP in the duodenum tended to be small and round.
Conclusions
HP exhibits typical pancreatic pathologic features. Images showed characteristic features
in CT imaging: submucosal masses, ill-defined lesions with an endoluminal growth pattern,
bright enhancement similar to the normal pancreas, surface dimpling and low intralesional
attenuation. ES imaging showed an endoluminal, ill-defined, submucosal mass, typically
with central umbilication.
Keywords
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Article info
Publication history
Published online: November 15, 2010
Accepted:
August 30,
2010
Received:
August 10,
2010
Identification
Copyright
© 2011 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
