renal calix的用法和样例：
例句
- The earlier stages of renal tuberculosis sometimes heal without treatment, and this also occurs after obstruction of a calyx or at the pelvi-ureteric junction.
肾结核早期，有时可不治而愈，在肾盏发生阻塞或在肾盂和输尿管连接处发生阻塞的情况下，也会出现不治而愈的情况。 - The onset of symptoms coincides with rupture of a caseous focus into one of the calyces, causing infection of the renal pelvis and the production of an apparently sterile pyuria.
随着干酪样变病灶破溃进入肾盏，从而引起肾盂的感染，并产生明显的无菌脓尿。
