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Differentiation of benign and malignant solid pseudopapillary neoplasms of the pancreas

Authors
 Yong Eun Chung  ;  Myeong-Jin Kim  ;  Jin-Young Choi  ;  Joon Seok Lim  ;  Hye-Suk Hong  ;  Young Chul Kim  ;  Hyeon Je Cho  ;  Kyung Ah Kim  ;  Sun Young Choi 
Citation
 JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, Vol.33(5) : 689-694, 2009 
Journal Title
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
ISSN
 0363-8715 
Issue Date
2009
MeSH
Adult ; Aged ; Aged, 80 and over ; Calcinosis/pathology ; Carcinoma, Papillary/diagnosis* ; Carcinoma, Papillary/pathology ; Carcinoma, Papillary/secondary ; Carcinoma, Papillary/surgery ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Humans ; Liver Neoplasms/secondary ; Logistic Models ; Lymphatic Metastasis ; Male ; Middle Aged ; Multivariate Analysis ; Neoplasm Invasiveness/diagnosis ; Pancreatectomy ; Pancreatic Diseases/diagnosis ; Pancreatic Diseases/pathology ; Pancreatic Neoplasms/diagnosis* ; Pancreatic Neoplasms/pathology ; Pancreatic Neoplasms/surgery ; Treatment Outcome ; Young Adult
Keywords
pancreatic neoplasm ; solid pseudopapillary neoplasm ; computed tomography ; magnetic resonance imaging ; pathology
Abstract
OBJECTIVE: The aim of this study was to investigate differential imaging features between benign and malignant solid pseudopapillary neoplasms (SPN) of the pancreas on computed tomographic and magnetic resonance imagings.

METHODS: Between January 2001 and January 2007, we identified 30 patients with confirmed SPN by surgery. The computed tomographic and magnetic resonance images were reviewed by 3 radiologists in consensus. Each tumor was analyzed for the following categories: location of tumor, tumor margin, proportion of solid component, morphology of capsule, growth pattern, calcification, and presence of upstream pancreatic ductal dilatation.

RESULTS: Benign SPN usually had oval/round or smoothly lobulated margins, and malignant SPN more commonly had focal lobulated margins (P = 0.027). Presence of complete encapsulation was more frequently seen in benign SPN, whereas focal discontinuity of capsule was more commonly seen in malignant SPN (P = 0.005). There was no statistical difference between benign and malignant tumors in other imaging findings.

CONCLUSIONS: A focal lobulated margin and a focal discontinuity of the capsule may suggest malignant SPN, whereas a round or smoothly lobulated margin and a complete encapsulation were more commonly seen in benign SPN.
Full Text
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00004728-200909000-00007&LSLINK=80&D=ovft
DOI
10.1097/RCT.0b013e31818f2a74
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ah(김경아)
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
Kim, Young Chul(김영철)
Lim, Joon Seok(임준석) ORCID logo https://orcid.org/0000-0002-0334-5042
Chung, Yong Eun(정용은) ORCID logo https://orcid.org/0000-0003-0811-9578
Cho, Hyeon Je(조현제)
Choi, Sun Young(최선영)
Choi, Jin Young(최진영) ORCID logo https://orcid.org/0000-0002-9025-6274
Hong, Hye Suk(홍혜숙) ORCID logo https://orcid.org/0000-0001-7398-2517
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/104388
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