MRI and pathological analysis of hepatic focal nodular hyperplasia

XU Shang-wen; CHEN Zi-qian; QIAN Gen-nian; ZHONG Qun; CHENG Guan-xun

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Journal of China Clinic Medical Imaging ›› 2007, Vol. 18 ›› Issue (4) : 243-246.

论著

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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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.

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focal nodular hyperplasia / magnetic resonance imaging

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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