CAJ | 학술논문

目的探讨肾上皮样血管平滑肌脂肪瘤(EAML)的CT表现.方法回顾性分析经手术病理证实的10例EAML患者的临床资料及CT图像,10例均行平扫及增强检查,观察影像表现特征.结果肿瘤平扫呈相对高密度、向肾外突出、乏脂肪;增强明显不均性强化(快进慢出)、瘤体较大但无分叶、包膜完整,多与肾分界清晰;其内常有轻度变性坏死区.镜下见密集分布的上皮样细胞;免疫组织化学示黑色素瘤相关抗原(HMB45)均为阳性、上皮膜抗原(EMA)均为阴性.结论 EAML的CT表现有一定的有助于定性诊断的特点,与病理结构明显相关.
목적 탐토신상피양혈관평활기지방류(EAML)적CT표현.방법 회고성분석경수술병리증실적10례EAML환자적림상자료급CT도상,10례균행평소급증강검사,관찰영상표현특정.결과 종류평소정상대고밀도、향신외돌출、핍지방;증강명현불균성강화(쾌진만출)、류체교대단무분협、포막완정,다여신분계청석;기내상유경도변성배사구.경하견밀집분포적상피양세포;면역조직화학시흑색소류상관항원(HMB45)균위양성、상피막항원(EMA)균위음성.결론 EAML적CT표현유일정적유조우정성진단적특점,여병리결구명현상관.
Objective To explore the CT and pathological features of renal epithelioid angiomyolipoma (EAML). Methods Clinical data and CT images from ten cases with EAML proved by surgery and pathology were retrospectively analyzed. All cases were performed with plain and contrast enhanced CT scans. Results CT features: higher pre-contrasted density than kidney, bulging from kidney,absent of fat, markedly heterogeneous enhancement ( quick wash-in and slow wash-out), big size without lobular sign, complete capsule with clear margin and mild necrostic area. Pathological features: diffuse sheets of epithelioid cells were found under microscopy with immunohistochemistrical findings including positivity for HMB-45 and negativity for EMA. Conclusion Some specific CT features, which is correlated well with the pathological findings, provide helpful information in the primary diagnosis of EAML.