Dalla Palma L, Pozzi-Mucelli R, Magnaldi S, Pozzi-Mucelli F
Istituto di Radiologia Università Trieste.
Radiol Med. 1988 Dec;76(6):590-6.
The incidence of small renal tumors (less than cm 3) has increased in the past few years. Reasons for the increased number of reports are related to the contribution of Sonography and Computed Tomography--which enable a greater number of kidneys to be examined and allow a more detailed study of renal parenchyma. In order to assess the diagnostic value and role of the various imaging techniques in this pathology, the authors reviewed all renal tumors observed between 1982 and 1987. Nineteen cases presented with the characteristics of small renal tumors with "solid" findings on both US and CT. Sixteen cases were histologically proven (15 adenocarcinomas, 1 oncocytoma). Three recent, unoperated, cases are included since their features are the same as in the other cases. Metastases and other kinds of tumors (i.e. angiomyolipomas) are not included in this series. Ivp was performed in 14/19 cases; US and CT were always performed. CT proved to be the most sensitive technique, being positive in all cases. Ivp was positive in 9/14 cases (64%) and US in 14/19 (73%). A significant increase in the number of small renal tumors detected was observed, mainly in 1985-1987. This increase is correlated with the increase in the total number of abdominal examinations which US and CT have made possible. Most patients were asymptomatic; in fact, 15/19 cases were incidentally discovered with US and CT of the upper abdomen. US and CT appear to give a substantial contribution to an early diagnosis of small renal tumors, which may have a significant impact on both surgery and prognosis.
在过去几年中，小肾肿瘤（直径小于3厘米）的发病率有所上升。报告数量增加的原因与超声检查和计算机断层扫描技术的贡献有关，这些技术能够检查更多的肾脏，并对肾实质进行更详细的研究。为了评估各种成像技术在这种病理状况下的诊断价值和作用，作者回顾了1982年至1987年间观察到的所有肾肿瘤。19例呈现出小肾肿瘤的特征，超声和CT检查均显示为“实性”表现。16例经组织学证实（15例腺癌，1例嗜酸细胞瘤）。纳入了3例近期未手术的病例，因为它们的特征与其他病例相同。本系列不包括转移瘤和其他类型的肿瘤（如血管平滑肌脂肪瘤）。19例中有14例进行了静脉肾盂造影（IVP）检查；超声和CT检查则是所有病例均进行。CT被证明是最敏感的技术，所有病例均呈阳性。IVP在14例中有9例呈阳性（64%），超声在19例中有14例呈阳性（73%）。观察到检测到的小肾肿瘤数量显著增加，主要集中在1985年至1987年。这种增加与超声和CT使腹部检查总数增加相关。大多数患者无症状；实际上，19例中有15例是在上腹部超声和CT检查时偶然发现的。超声和CT似乎对小肾肿瘤的早期诊断有很大贡献，这可能对手术和预后都有重大影响。
