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간의 염증성 거짓종양의 자기공명 영상 소견

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Author(s)
장지연김미정권중혁
Keimyung Author(s)
Kim, Mi JeongKwon, Jung Hyeok
Department
Dept. of Radiology (영상의학)
Journal Title
Keimyung Medical Journal
Issued Date
2009
Volume
28
Issue
2
Keyword
GranulomaLivermagnetic resonance imaging (MRI)
Abstract
Purpose: The purpose of our study was to evaluate magnetic resonance imaging (MRI) findings of inflammatory pseudotumor of the liver. Materials and Methods: Authors reviewed the patient records of 14 patients who performed abdominal MRI scan among 36 patients who performed abdominal computed tomography (CT) and/or MR scans with inflammatory pseudotumor from October 2001 to October 2008. 13 patients were confirmed by surgery or CT or ultrasound (US)-guided needle biopsy and 1 patients were diagnosed by showing much improvement on follow-up study. We retrospectively evaluated MRI findings of inflammatory pseudotumor. We analyzed mass size, location, signal intensity and pattern on T1-weighted image (T1WI) and T2-weighted image (T2WI), and enhancement degree and pattern from arterial phase, portal phase, and equilibrium phase. Results: 21 lesions of inflammatory pseudotumor of the liver were detected among 14 patients. The size of lesions was variable from 10 mm to 56 mm and the mean in size was 22 mm. Among 21 lesions, 17 lesions were located in the right lobe and 4 lesions were located in the left lobe. On T1WI, 19 lesions showed hypointense and 2 lesions were isointense. On T2WI, all lesions showed hyperintense. In Gd-enhnaced arterial phase, 11 lesions showed more enhancement but each 6 lesions and 4 lesions showed less and iso enhancement as compared with hepatic parenchyma. 7 lesions showed peripheral enhancement. 2 lesions showed nodular enhancement. 3 lesions had peripheral rim showing hypointense. In portal phase, 14 lesions showed more enhancement and 7 lesions showed less enhancement
as compared with hepatic parenchyma. In enhancement pattern, 16 lesions showed peripheral
enhancement and 2 lesions showed internal nodular enhancement, and 3 lesions showed
homogeneously hypointense. In equilibrium phase, all lesions showed more enhancement as compared with hepatic parenchyma. In enhancement pattern, 20 lesions showed peripheral enhancement with less or non-enhancing internal portion. Only one lesion showed diffuse homogeneous enhancement. Conclusions: Peripheral enhancement with internal non or less-enhancing portion on the Gdenhanced portal and delayed phase is meaning finding in suggestion of inflammatory pseudotumor of the liver.
Alternative Title
MR finding of inflammatory pseudotumor of the liver
Keimyung Author(s)(Kor)
김미정
권중혁
Publisher
Keimyung University School of Medicine
Citation
장지연 et al. (2009). 간의 염증성 거짓종양의 자기공명 영상 소견. Keimyung Medical Journal, 28(2), 207–216.
Type
Article
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/15446
Appears in Collections:
2. Keimyung Medical Journal (계명의대 학술지) > 2009
1. School of Medicine (의과대학) > Dept. of Radiology (영상의학)
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