肝脏局灶性结节增生的MRI表现与病理对照分析

许尚文; 陈自谦; 钱根年; 钟群; 成官迅

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中国临床医学影像杂志 ›› 2007, Vol. 18 ›› Issue (4) : 243-246.

论著

肝脏局灶性结节增生的MRI表现与病理对照分析

许尚文1，陈自谦1，钱根年1，钟群1，成官迅2

作者信息 +

MRI and pathological analysis of hepatic focal nodular hyperplasia

XU Shang-wen1, CHEN Zi-qian1, QIAN Gen-nian1, ZHONG Qun1, CHENG Guan-xun2

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摘要

目的：分析肝脏局灶性结节增生（FNH）的平扫和动态增强的MRI表现及诊断价值，提高FNH诊断的准确率。方法：回顾性分析15例（16个病灶）经病理证实的FNH的平扫及动态增强MRI表现。结果：16个病灶于T1WI呈略低信号或等信号，T2WI呈略高信号或等信号。增强扫描动脉期呈明显强化，在门脉期及延迟期呈等或略高强化。5个病灶在平扫MRI上显示中央瘢痕，11个病灶在动态增强MRI上显示中央瘢痕，均见延迟强化。结论：平扫和动态增强MRI检查能较全面显示FNH的病理特征和血供特点，明显地提高与其他富血管恶性肿瘤的鉴别诊断能力。

Abstract

Objective: To improve diagnostic accuracy of hepatic focal nodular hyperplasia(FNH) by studying MRI multiphase scanning. Methods: A retrospective analysis was made on the unenhanced and dynamic enhanced MR images of 15 patients(totally 16 lesions) with surgical and pathological proved FNH. Results: MR images of 16 lesions always showed appearance with slightly low or isointense on T1-weighted images and isointense or slightly hyperintense on T2-weighted images. All lesions had apparent enhancement in the arterial phase and prolonged enhancement in the portal venous phase and delayed phase. Central scar was found in 5 FNH lesions on unenhanced images and in 11 FNH lesions on dynamic contrast- enhanced images, and demonstrated late enhancement. Conclusion: The unenhanced and dynamic contrast-enhanced MRI scanning can fully show the pathologic and the blood supplying characteristics of FNH and improve differentiating ability from other malignant hypervascular tumors.

导出引用

许尚文;陈自谦;钱根年;钟群;成官迅. 肝脏局灶性结节增生的MRI表现与病理对照分析[J]. 中国临床医学影像杂志. 2007, 18(4): 243-246

XU Shang-wen;CHEN Zi-qian;QIAN Gen-nian;ZHONG Qun;CHENG Guan-xun. MRI and pathological analysis of hepatic focal nodular hyperplasia[J]. Journal of China Clinic Medical Imaging. 2007, 18(4): 243-246

中图分类号： Ｒ575 Ｒ445.2