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MRI features of serous oligocystic adenoma of the pancreas: differentiation from mucinous cystic neoplasm of the pancreas

Authors
Lee, JH; Kim, JK; Kim, TH; Park, MS; Yu, JS; Choi, JY; Kim, JH; Kim, YB; Kim, KW
Citation
The British journal of radiology, 85(1013):571-576, 2012
Journal Title
The British journal of radiology
ISSN
0007-12851748-880X
Abstract
OBJECTIVES: The purpose of this study was to describe the MRI features of the benign pancreatic neoplasm serous oligocystic adenoma (SOA) that differ from those of mucinous cystic neoplasm (MCN), a neoplasm with the potential for malignant degeneration.



METHODS: Seven patients with SOA (seven women; mean age 36.6 years) and eight patients with MCN (eight women: mean age 39.9 years) were included. Several imaging features were reviewed: mass size, location, shape, wall thickness, cyst configuration (Type I, unilocular; Type II, multiple clustered cyst; Type III, cyst with internal septation) and signal intensity of the lesion with heterogeneity.



RESULTS: SOA lesions were smaller (3.4 cm) than those of MCN (9.3 cm) (p=0.023). The commonest lesion shape was lobulated (85.7%) for SOA, but oval (50.0%) or lobulated (37.5%) for MCN (p=0.015). The most common cyst configuration was Type II (85.7%) for SOA and Type III (75.0%) for MCN (p=0.008). Heterogeneity of each locule in T(1) weighted images was visible in all cases of MCN, but in no case for SOA (p=0.004).



CONCLUSION: SOA could be differentiated from MCN by identifying the imaging features of lobulated contour with multiple clustered cyst configurations and homogeneity of each locule in T(1) weighted MR images.
MeSH terms
AdultCystadenoma, Mucinous/*diagnosis/pathologyCystadenoma, Serous/*diagnosis/pathologyDiagnosis, DifferentialFemaleHumans*Magnetic Resonance ImagingMiddle AgedPancreatic Neoplasms/classification/*diagnosis/pathologyYoung Adult
DOI
10.1259/bjr/42007785
PMID
21304008
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
Journal Papers > School of Medicine / Graduate School of Medicine > Pathology
AJOU Authors
이, 제희김, 재근김, 태희김, 장희김, 영배
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