CAJ | 학술논문

目的探讨肾脏上皮样血管平滑肌脂肪瘤(EAML)的CT表现,以提高对该病的诊断水平.方法对15例经手术病理证实为肾脏EAML的临床及影像资料进行回顾性分析.15例肾脏EAML均经CT平扫及增强扫描.结果肾EAML具有一定的特征性表现:(1)CT平扫呈稍低或等高密度,无脂肪成分,边界光整,圆形或类圆形,直径为2～5 cm;(2)病灶可以累及肾髓质部分或向外生长,但实验室检查无血尿;(3)增强扫描动脉期呈明显或较明显均匀强化,少数可不均匀明显强化,部分病灶内有增粗迂曲的血管;(4)强化方式为快进快出.结论 CT特征表现对正确诊断肾脏EAML有重要价值.
목적 탐토신장상피양혈관평활기지방류(EAML)적CT표현,이제고대해병적진단수평.방법 대15례경수술병리증실위신장EAML적림상급영상자료진행회고성분석.15례신장EAML균경CT평소급증강소묘.결과 신EAML구유일정적특정성표현:(1)CT평소정초저혹등고밀도,무지방성분,변계광정,원형혹류원형,직경위2～5 cm;(2)병조가이루급신수질부분혹향외생장,단실험실검사무혈뇨;(3)증강소묘동맥기정명현혹교명현균균강화,소수가불균균명현강화,부분병조내유증조우곡적혈관;(4)강화방식위쾌진쾌출.결론 CT특정표현대정학진단신장EAML유중요개치.
Objective To explore the CT features of renal epithelioid angiomyolipoma (EAML), and to improve the diagnosis of this disease.Methods The clinical materials and image findings of 15 cases (8 female, 7 male) with renal EAML proved by pathologies were retrospectively studied.Plain and enhancement CT scan were performed in all 15 patients.Nine of the 15 cases were correctly diagnosed and the other were misdiagnosed as renal cell carcinoma (RCC) (n=5), renal oncocytoma (n=1).Results There were some distinctive findings of EAML: (1) Little hypodense or iso-high-density, well defined, round lesion with diameter of 2 to 5 cm.(2) The tumor may involve the medulla of kidney or grow out without haematuria.(3) Most lesions showed obviously uniformity enhancement at artery phase, with a few of them showed inhomogeneous enhancement There were thickening and circuitous vessels in a few lesions.(4) Enhancement mode was quick-in and quick-out.Conclusions CT findings combined with clinical materials have important value in making a correct diagnosis of EAML preoperatively.