中华放射学杂志
中華放射學雜誌
중화방사학잡지
Chinese Journal of Radiology
2012年
12期
1096-1100
,共5页
赵晶%赵心明%欧阳汉%黄文亭%周纯武
趙晶%趙心明%歐暘漢%黃文亭%週純武
조정%조심명%구양한%황문정%주순무
肝肿瘤%体层摄影术,X线计算机%磁共振成像%对比分析
肝腫瘤%體層攝影術,X線計算機%磁共振成像%對比分析
간종류%체층섭영술,X선계산궤%자공진성상%대비분석
Liver neoplasms%Tomography,X-ray computed%Magnetic resonance imaging%Comparative study
目的 探讨肝细胞腺瘤的影像特征及其相关病理基础.方法 回顾性分析经手术病理证实的12例肝细胞腺瘤患者资料,根据肿瘤的病理特性分为脂肪变性型、炎细胞浸润伴血窦扩张型、异型细胞型和不典型肝细胞腺瘤4类亚型,分析不同病理亚型肝细胞腺瘤的CT及MR表现特征并与病理结果进行对照分析.结果 脂肪变性型共4例,其中2例行CT扫描,1例行MR扫描,1例同时行CT加MR扫描.CT平扫1例,表现为低密度；增强扫描3例,动脉期、门静脉期及延迟均为低密度；MR平扫2例,T1WI正相位均为等信号,T1WI反相位均为低信号,T2 WI均为中低信号；增强扫描1例,动脉期、门静脉期及延迟期均为低信号.炎细胞浸润伴血窦扩张型共2例,均行MR扫描,1例行CT扫描；CT平扫为低密度且CT三期动态增强均表现为高密度；MR平扫2例,T1WI 1例为等信号、1例为低信号,T2WI均为中高信号,MR增强扫描,2例三期动态增强呈不均匀渐进性持续强化,均为高信号.异型细胞型共3例,CT平扫2例,1例为均匀低密度、1例为均匀等密度；CT增强扫描3例,动脉期均为高密度,门静脉期强化程度减低(2例为高密度、1例为等密度),延迟期密度进一步减低(2例呈略高密度、1例呈略低密度)；1例同时行CT及MR扫描,MR平扫T1WI为等信号,T2 WI为中高信号.不典型肝细胞腺瘤共3例,1例同时行CT和MR扫描,2例仅行MR扫描.1例CT平扫为均匀低密度,增强扫描动脉期为高密度,门静脉期为等密度,延迟期为略高密度；3例MR平扫,T1WI为2例为等信号,1例为中高信号(1/3例)；T2WI为中高、中低、等信号各1例；增强扫描2例,动脉期均为高信号,门静脉期呈中低、中高信号各1例,延迟期呈等信号和中低信号各1例.结论 肝细胞腺瘤的影像特征与其病理组织特征密切相关.
目的 探討肝細胞腺瘤的影像特徵及其相關病理基礎.方法 迴顧性分析經手術病理證實的12例肝細胞腺瘤患者資料,根據腫瘤的病理特性分為脂肪變性型、炎細胞浸潤伴血竇擴張型、異型細胞型和不典型肝細胞腺瘤4類亞型,分析不同病理亞型肝細胞腺瘤的CT及MR錶現特徵併與病理結果進行對照分析.結果 脂肪變性型共4例,其中2例行CT掃描,1例行MR掃描,1例同時行CT加MR掃描.CT平掃1例,錶現為低密度；增彊掃描3例,動脈期、門靜脈期及延遲均為低密度；MR平掃2例,T1WI正相位均為等信號,T1WI反相位均為低信號,T2 WI均為中低信號；增彊掃描1例,動脈期、門靜脈期及延遲期均為低信號.炎細胞浸潤伴血竇擴張型共2例,均行MR掃描,1例行CT掃描；CT平掃為低密度且CT三期動態增彊均錶現為高密度；MR平掃2例,T1WI 1例為等信號、1例為低信號,T2WI均為中高信號,MR增彊掃描,2例三期動態增彊呈不均勻漸進性持續彊化,均為高信號.異型細胞型共3例,CT平掃2例,1例為均勻低密度、1例為均勻等密度；CT增彊掃描3例,動脈期均為高密度,門靜脈期彊化程度減低(2例為高密度、1例為等密度),延遲期密度進一步減低(2例呈略高密度、1例呈略低密度)；1例同時行CT及MR掃描,MR平掃T1WI為等信號,T2 WI為中高信號.不典型肝細胞腺瘤共3例,1例同時行CT和MR掃描,2例僅行MR掃描.1例CT平掃為均勻低密度,增彊掃描動脈期為高密度,門靜脈期為等密度,延遲期為略高密度；3例MR平掃,T1WI為2例為等信號,1例為中高信號(1/3例)；T2WI為中高、中低、等信號各1例；增彊掃描2例,動脈期均為高信號,門靜脈期呈中低、中高信號各1例,延遲期呈等信號和中低信號各1例.結論 肝細胞腺瘤的影像特徵與其病理組織特徵密切相關.
목적 탐토간세포선류적영상특정급기상관병리기출.방법 회고성분석경수술병리증실적12례간세포선류환자자료,근거종류적병리특성분위지방변성형、염세포침윤반혈두확장형、이형세포형화불전형간세포선류4류아형,분석불동병리아형간세포선류적CT급MR표현특정병여병리결과진행대조분석.결과 지방변성형공4례,기중2례행CT소묘,1례행MR소묘,1례동시행CT가MR소묘.CT평소1례,표현위저밀도；증강소묘3례,동맥기、문정맥기급연지균위저밀도；MR평소2례,T1WI정상위균위등신호,T1WI반상위균위저신호,T2 WI균위중저신호；증강소묘1례,동맥기、문정맥기급연지기균위저신호.염세포침윤반혈두확장형공2례,균행MR소묘,1례행CT소묘；CT평소위저밀도차CT삼기동태증강균표현위고밀도；MR평소2례,T1WI 1례위등신호、1례위저신호,T2WI균위중고신호,MR증강소묘,2례삼기동태증강정불균균점진성지속강화,균위고신호.이형세포형공3례,CT평소2례,1례위균균저밀도、1례위균균등밀도；CT증강소묘3례,동맥기균위고밀도,문정맥기강화정도감저(2례위고밀도、1례위등밀도),연지기밀도진일보감저(2례정략고밀도、1례정략저밀도)；1례동시행CT급MR소묘,MR평소T1WI위등신호,T2 WI위중고신호.불전형간세포선류공3례,1례동시행CT화MR소묘,2례부행MR소묘.1례CT평소위균균저밀도,증강소묘동맥기위고밀도,문정맥기위등밀도,연지기위략고밀도；3례MR평소,T1WI위2례위등신호,1례위중고신호(1/3례)；T2WI위중고、중저、등신호각1례；증강소묘2례,동맥기균위고신호,문정맥기정중저、중고신호각1례,연지기정등신호화중저신호각1례.결론 간세포선류적영상특정여기병리조직특정밀절상관.
Objective To retrospectively compare CT and MR features of hepatocellular adenoma with pathologic findings.Methods Twelve patients with histopathologically proved hepatocellular adenoma were classified on the basis of pathologic and genotype phenotype findings into four groups:steatotic type,cytological abnormality type,telangiectatic adenoma with inflammatory infiltrates type and atypical adenoma type.The CT and MR features of each type were reviewed retrospectively compared with the pathological results.Results In this retrospective study,12 patients were examined with CT (8 patients) and MR (8 patients).Among 12 patients,4 patients showed a steatotic type.One patient showed hypo-density on the non-enhanced CT and 3 patients demonstrated hypo-density on all phases of the post-contrast scans.Two lesions showed iso-intense signal on the in-phase T1 WI with signal dropout on the out-of-phase T1WI,and hypo-intense signal on the T2 WI with fat suppression sequences.One lesion demonstrated moderate hypointense signal on all phases of the post-contrast MRI scans.Two patients with the telangiectatic adenoma irflammatory infiltrates type were found.One patient showed hypo-density on the non-enhanced CT scans and hyper-density on all phases of the post-contrast CT scans.One patient demonstrated iso-intense signal and the other hypo-intense signal on the T1 WI,and both displayed moderate hyper-intense signal on the T2WI with fat suppression sequences and hyper-intense signal with gradual enhancement on all phases of post-contrast MR scans.There were 3 patients with a cytological abnormality type.One patient appeared hypodensity and 1 patient showed uniform iso-density on non-enhanced CT scans.All patients who had undergone contrast-enhanced CT scans were found to have hyper-density on the hepatic arterial-dominant phase and became slightly lower on the portal venous phase.On the delay phase the density reduced further.One mass showed iso-intense signal on the T1WI and hyper-intense signal on the T2WI with fat suppression sequences.There were 3 patients with an atypical adenoma type.One patient appeared uniform hypo-density on the nonenhanced CT and hyper-density on the hepatic arterial-dominant phase and became iso-dense on the portal venous phase.On the delay phase,it was slightly hyper-dense.Two out of the three lesions showed isointense and one hypo-intense signal on the in-phase T1 WI,and hypo-intense,hyper-intense,and iso-intense signal on the T2WI with fat suppression sequences,respectively.Two patients examined on all phases of post-contrast MRI scans.The result was similar to the CT findings.Conclusion The imaging features of hepatocellular adenoma are closely associated with pathological characteristics.
