Volume of polycystic kidneys during reduction of renal function.

Total renal volume was measured by CT scanning in 43 patients with the adult form of polycystic kidney disease whose 24h endogenous creatinine clearance ranged from 8 to 130 ml/min. The total volume of the 2 kidneys increased from 1,212 (SD +/- 411) cm3 in patients with normal renal function to 2,053 (SD +/-698) cm3 in patients with severely decreased function, as compared to 497 (SD +/- 58) cm3 in persons without evidence of renal disease. Despite progression of the disease, the mean difference in size between the 2 kidneys remained constant and was significant only in patients with well-preserved renal function.

CT scanning in patients with Zollinger-Ellison syndrome and carcinoid syndrome.

Computed tomography of the upper abdomen was performed in 11 patients with Z--E syndrome and 6 patients with carcinoid syndrome. The liver, pancreas, spleen and upper part of the retroperitoneal space were examined to localize a primary tumour and/or metastases. The CT findings were correlated to the final diagnoses obtained by operation or by other diagnostic procedures.