Weyman P J, McClennan B L, Lee J K, Stanley R J
AJR Am J Roentgenol. 1982 Jun;138(6):1095-9. doi: 10.2214/ajr.138.6.1095.
The ability to evaluate the composition and to precisely locate calcifications within renal masses resulted in more accurate evaluation of 21 calcified renal masses by computed tomography than by standard radiographic techniques. Of 11 solid tumors, computed tomography demonstrated a soft-tissue mass extending beyond the calcification in nine cases of renal cell carcinoma. Of 10 benign cystic lesions, all six lesions characterized by a uniform water-density center, calcification confined to the wall, and no detectable soft-tissue mass were benign cysts. Three additional cystic lesions (xanthogranulomatous pyelonephritis, multilocular cystic nephroma, and a cyst containing calcified debris) were believed to represent benign lesions prospectively due to the absence of a soft-tissue mass. Only peripherally calcified lesions with a central attenuation higher than accepted for benign cysts were indeterminate by computed tomography. The significance of the computed tomographic findings in terms of malignant potential and patient management is discussed.
与标准放射技术相比，计算机断层扫描（CT）评估肾肿块内钙化的成分并精确定位钙化的能力，使得对21个钙化性肾肿块的评估更为准确。在11个实性肿瘤中，CT显示在9例肾细胞癌中软组织肿块超出了钙化范围。在10个良性囊性病变中，所有6个以均匀水样密度中心、钙化局限于壁且无可检测到的软组织肿块为特征的病变均为良性囊肿。另外3个囊性病变（黄色肉芽肿性肾盂肾炎、多房性囊性肾瘤和一个含有钙化碎片的囊肿）由于没有软组织肿块，前瞻性地被认为代表良性病变。只有中心衰减高于良性囊肿可接受范围的周边钙化病变，CT检查结果不确定。本文讨论了CT检查结果在恶性潜能和患者管理方面的意义。
