HYPERECHOIC RENAL-CELL CARCINOMAS - INCREASE IN DETECTION AT US
HYPERECHOIC RENAL-CELL CARCINOMAS - INCREASE IN DETECTION AT US
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DOI：
10.1148/radiology.188.2.8327692
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发表时间：
1993-08-01
期刊：
影响因子：
19.7
通讯作者：
MCCLENNAN, BL
中科院分区：
文献类型：
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作者：
FORMAN, HP;MIDDLETON, WD;MCCLENNAN, BL
最近的报告表明，高回声肾细胞癌(RCCA)在小肿瘤中更常见，小肿瘤被发现的频率也更高。为了确定这些趋势是否导致高回声RCCA的发现频率的改变，特别是RCCA模拟血管肌肉脂肪瘤(AML)的频率的改变，我们回顾了82例患者的90例经病理证实的RCCA的超声特征，并与肿瘤大小相关联。肿瘤回声与正常肾实质相比较，分为低回声、等回声、稍高回声或明显高回声。肿瘤直径<3 cm者31例，大于3 cm者59例。在直径小于或等于3 cm的肿瘤中，10个(32%)有明显的高回声和类似AMLS的表现，而在直径大于3 cm的肿瘤中，只有1个(2%)有这种表现(P<；.001)。90个肿瘤中有11个(12%)呈明显高回声。小肿瘤中有24个(77%)呈轻微或明显的高回声，而大肿瘤中有19个(32%)呈高回声(P<；.001)。由于近年来对小RCCA的检出增加，高回声癌的数量和模仿AML的癌症的数量都有所增加。
Recent reports have indicated that hyperechoic renal cell carcinomas (RCCAs) are more frequent among small cancers and that small cancers are being detected more frequently. To determine whether these trends have resulted in a change in the frequency of detection of hyperechoic RCCA and, in particular, in the frequency of RCCA mimicking angiomyolipomas (AMLs), the sonographic features of 90 pathologically proved RCCAs in 82 patients were retrospectively reviewed and correlated with tumor size. Tumor echogenicity was compared with that of normal renal parenchyma and classified as hypoechoic, isoechoic, slightly hyperechoic, or markedly hyperechoic. Thirty-one tumors were 3 cm in diameter or less, and 59 were larger than 3 cm. Ten (32%) of the tumors 3 cm in diameter or less were markedly hyperechoic and mimicked AMLs, whereas only one (2%) of the tumors larger than 3 cm had this appearance (P < .001). Eleven of the 90 tumors (12%) were markedly hyperechoic. Twenty-four (77%) of the small tumors were either slightly or markedly hyperechoic, compared with 19 (32%) of the larger tumors (P < .001). Because of the increased detection of small RCCAs in recent years, the number of hyperechoic cancers and the number of cancers mimicking AMLs have increased.