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Evaluation of the characteristics of hepatic focal nodular hyperplasia: correlation between dynamic contrast-enhanced multislice computed tomography and pathological findings

Authors Zhang H, Gao X, Xu Q, Chen Y, Song Y, Yao Z

Received 5 January 2016

Accepted for publication 10 June 2016

Published 22 August 2016 Volume 2016:9 Pages 5217—5224


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Ram Prasad

Peer reviewer comments 2

Editor who approved publication: Professor Min Li

Hai-Tao Zhang,1,* Xin-Yi Gao,2,* Qin-Sha Xu,1 Yu-Tang Chen,3 Yu-Piao Song,1 Zhen-Wei Yao2

1Department of Radiology, Jiangwan Hospital, 2Department of Radiology, Affiliated Huashan Hospital of Fudan University, Shanghai, 3Department of Radiology, Zhejiang Province Tumor Hospital, Hangzhou, People’s Republic of China

*These authors contributed equally to this work

Objective: To evaluate the characteristics of enhancement of focal nodular hyperplasia (FNH) of the liver by analyzing the dynamic contrast-enhanced multislice computed tomography (MSCT) features and correlating them with pathological findings.
Patients and methods: Nine males and 16 females with pathologically confirmed FNH and complete preoperative contrast-enhanced MSCT data were recruited for this study. The imaging features of FNH on the pre- and postcontrast MSCT were analyzed by two experienced radiologists by consensus.
Results: Pathology showed central scars and abnormal blood vessels in 17 and 21 of 25 lesions, respectively, while MSCT with multiphase enhancement showed central scars in eight of the 17 lesions (47.1%) and abnormal arteries or draining veins in 13 of the 21 lesions (61.9%). Furthermore, abnormal draining veins in five lesions were found to be diagnostic, which is another important finding.
Conclusion: Multiphase scanning can provide the panorama of FNH lesions and reveal their enhancement patterns and pathological characteristics. Abnormal blood vessels within or around the lesion are demonstrated more often than central scar, and both should be observed for FNH diagnosis.

Keywords: liver, focal nodular hyperplasia, multislice computed tomography, pathological findings, contrast enhancement, abnormal vein

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