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Dysplastic nodules of the liver: imaging findings

Authors
 B. I. Choi  ;  J. K. Han  ;  S. H. Hong  ;  T. K. Kim  ;  C. S. Song  ;  K. W. Kim  ;  M.-J. Kim  ;  M. C. Han 
Citation
 ABDOMINAL IMAGING, Vol.24(3) : 250-257, 1999 
Journal Title
 ABDOMINAL IMAGING 
ISSN
 0942-8925 
Issue Date
1999
MeSH
Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Liver Diseases/diagnosis* ; Liver Diseases/diagnostic imaging ; Liver Diseases/pathology ; Liver Neoplasms/diagnosis* ; Liver Neoplasms/diagnostic imaging ; Liver Neoplasms/pathology ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Tomography, X-Ray Computed ; Ultrasonography
Abstract
BACKGROUND: To verify characteristic features of hepatic dysplastic nodules at different imaging modalities. METHODS: Twenty-eight patients with 37 dysplastic nodules of the liver (0.8-3.0 cm) underwent sonography (28 patients), computed tomography (CT; 24 patients), magnetic resonance (MR; 11 patients), and angiography (12 patients). Each nodule was analyzed for echogenicity, attenuation, signal intensity, and vascularity. RESULTS: Echogenicity of nodules was high in 16 (43%), homogeneous in two (6%), and low in 19 (51%) of 37 nodules. Attenuation of nodules was high in one (7%), homogeneous in four (26%), and low in 10 (67%) of 15 nodules on the arterial-phase CT images; homogeneous in five (33%) and low in 10 (67%) of 15 nodules on the portal-phase CT images; and high in four (17%), homogeneous in six (26%), and low in 13 (57%) of 23 nodules on the delayed-phase CT images. Signal intensity of nodules was high in 15 (94%) and homogeneous in one (6%) of 16 nodules on T1-weighted MR images and was homogeneous in seven (44%) and low in nine (56%) of 16 nodules on T2-weighted MR images. Vascularity of nodules was avascular in 14 (88%) and slightly vascular in two (12%) of 16 nodules. CONCLUSIONS: Hepatic dysplastic nodules show diverse imaging characteristics with different imaging techniques; however, common imaging findings of hepatic dysplastic nodules are low echo, low attenuation, and high, low, or homogeneous intensity on T1- and T2-weighted MR, and avascularity.
Full Text
https://link.springer.com/article/10.1007%2Fs002619900490
DOI
10.1007/s002619900490
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173741
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