肝脏局灶性结节增生的MSCT诊断  

MSCT diagnosis of hepatic focal nodular hyperplasia

作　　者：马振波[1] 王进述[1] 郭爱军[1] 吕宝华[1] 

机构地区：[1]泰山医学院附属泰山医院医学影像部,山东泰安271000

出　　处：《泰山医学院学报》2011年第5期334-336,共3页Journal of Taishan Medical College

摘　　要：目的探讨肝脏局灶性结节增生(FNH)在多层螺旋CT(MSCT)的表现,提高CT诊断准确性。方法回顾性分析13例(13个病灶)经病理证实的FNH的平扫及三期增强MSCT表现。结果 13个FNH,平扫10个为低密度,3个为等密度,其中9个病灶中央有点、条状及裂隙状低密度灶。增强扫描动脉期所有病灶均有明显强化,除中心疤痕外病灶强化基本均匀一致,其中6例病灶中心或周边还可见到增粗、扭曲的动脉。增强扫描门脉期和延迟期11个病灶为等密度或略低密度,2个为略高密度。9例伴有中心疤痕者,3例无强化,6例有延迟强化。结论 MSCT多期扫描可充分反映FNH的病理特征和血供特点,在诊断和鉴别诊断中具有重要价值。Objective： To study the features of focal nodular hyperplasia（FNH） on multislice spiral computed tomography and to improve its diagnostic accuracy.Methods： MSCT images pre-and post-3-phase dynamic enhancement in 13 patients（13 lesions in total） with pathology proved FNH were analyzed retrospectively.Results：On pre-contrast scans,10 of 13 lesions were hypodense,and 3 of 13 were isodense.Nine of 13 lesions showed punctuated-shaped,streak and radial scar.On the arterial phase scans,all lesions were markedly and homogeneously enhanced except the central scar area.Tortuous and dilated arteries were seen at the center or peripheral area in 6 out of 13 lesions.On the portal phase and delayed phase scans,11 of 13 lesions turned into isodense of slightly hypodense,two lesions remained slightly hyperdense.Central scar was found in 9 FNH lesions,3 of them showed no enhancement while the other six demonstrated late enhancement.Conclusion： MSCT scanning can fully reflect pathologic features of FNH and the blood supplying,and,therefore,it is of great value in diagnosing and differentiating FNH.

关 键 词：肝脏 局灶性结节增生 多层螺旋CT 

分 类 号：R735.7[医药卫生—肿瘤]