CAJ | 학술논문

目的探讨肝脏炎性肌纤维母细胞瘤(HIMT)的影像学表现及病理特点,提高对该病的认识和诊断准确性.资料与方法回顾性分析经病理证实的21例HIMT 患者的影像学表现与病理特点.21例均行 CT 检查,其中3例同时行 MR 检查.结果21例病灶均位于肝右叶,平均直径(4.1±1.2)cm.平扫 CT 均为低密度影;T1WI 为低信号,T2WI 为等或稍高信号;动态增强扫描强化表现:全瘤强化型8例,边缘强化型6例,分隔强化型4例,无强化型3例;除无强化型外,其余18例动态增强均表现为动脉期轻度强化,门静脉期明显强化,延迟期仍见强化.所有病灶镜下均见不同程度的凝固性坏死、纤维组织增生及炎症细胞浸润.结论 HIMT 的CT 及 MR 表现多样,动态增强以门静脉期及延迟期强化为主,其中全瘤强化型较具特征性;HIMT 的影像学表现充分反映其病理特点,结合临床有助于及时作出正确诊断.
목적탐토간장염성기섬유모세포류(HIMT)적영상학표현급병리특점,제고대해병적인식화진단준학성.자료여방법회고성분석경병리증실적21례HIMT 환자적영상학표현여병리특점.21례균행 CT 검사,기중3례동시행 MR 검사.결과21례병조균위우간우협,평균직경(4.1±1.2)cm.평소 CT 균위저밀도영;T1WI 위저신호,T2WI 위등혹초고신호;동태증강소묘강화표현:전류강화형8례,변연강화형6례,분격강화형4례,무강화형3례;제무강화형외,기여18례동태증강균표현위동맥기경도강화,문정맥기명현강화,연지기잉견강화.소유병조경하균견불동정도적응고성배사、섬유조직증생급염증세포침윤.결론 HIMT 적CT 급 MR 표현다양,동태증강이문정맥기급연지기강화위주,기중전류강화형교구특정성;HIMT 적영상학표현충분반영기병리특점,결합림상유조우급시작출정학진단.
Purpose To evaluate the imaging findings with clinical features and pathological basis of hepatic inflammatory myofibroblastic tumor (HIMT). Materials and Methods Twenty-one patients with pathology proven HIMT were reviewed retrospectively. Twenty-one patients underwent CT, and three underwent additional MRI. Results All tumors in 21 patients were in right hepatic lobe. The mean diameter was (4.1±1.2) cm. The lesions were low density on non contrast CT. MRI was manifested as hypointense lesions on unenhanced T1WI and isointensity or mild hyperintensity on unenhanced T2WI. Enhancement manifestations in dynamic contrast scan showed 8 cases of entire tumor enhancement, 6 ring-shaped enhancement; 4 septal enhancement; 3 no enhancement. Pathological examination showed different degrees of organized necrosis, fibrous tissue and inflammatory cells infiltration. Conclusion The CT and MR features of HIMT are characteristic, which correlate with its pathological findings.