One hundred live related voluntary kidney donors were studied prospectively. During donor nephrectomy the actual kidney bipolar length was measured and compared to the renal bipolar length estimated from abdominal sonogram, abdominal plain X-ray, intravenous pyelogram, and renal angiogram. Ultrasound was found to measure the kidney more accurately (mean difference between estimated size and actual = -3.4 mm +/- SD 6.96), than plain X-ray (mean difference from actual 13mm +/- SD 5.24), IVP (mean difference from actual 16.9 mm +/- SD 5.74), and renal angiogram (mean difference from actual 15.2 mm +/- SD 5.77).

An autopsy case of cerebro‐hepato‐renal syndrome of Zellweger, which occurred in a 14‐year‐old Japanese girl, is reported. The autopsy revealed widely distributed cystic changes in addition to renal blastema of both kidneys, and the liver was cirrhotic. The case was complicated by anomalies such as high forehead, strabismus, and partial defect of chorioidea. So far there have been only 10 reported cases of cerebro‐hepato‐renal syndrome of Zellweger in Japan.