PEDIATRICS Vol. 67 No. 4 April 1981, pp. 554-559
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Transient Nephromegaly Simulating Infantile Polycystic Disease of the Kidneys

F. Bruder Stapleton MC, USNR1, Saskia Hilton MC, USNR1, John Wilcox MC, USNR1, and George R. Leopold MD2

1 Departments of Pediatrics and Radiology, and Clinical Investigation Center Naval Regional Medical Center San Diego
2 Department of Radiology University of California Medical Center San Diego

The discovery of bilaterally enlarged kidneys near the time of birth often portends a poor prognosis for renal function. Important diagnostic considerations include obstructive uropathy, renal venous thromboses, Wilms'tumor, infantile polycystic kidney disease, and renal multicystic dysplasia. In this report, we describe a child in whom enlarged bilateral kidneys were noted during the first day of life and to whom a presumptive clinical diagnosis of infantile polycystic kidney disease was incorrectly assigned, primarily on the basis of the excretory urogram. By 6 weeks of age, however, the kidney size was normal, and at 2 years of age, the boy remains in good health with radiographically normal kidneys.

CASE REPORT