Renal ectopia in Nairobi.

Forty-six patients with renal ectopia were investigated over a 5 1/4 years period. The male to female ratio was 15:31. Their ages ranged from 3 1/2 to 50 years. The commonest presentation was abdominal mass. The right kidney was involved in 50pc, the left in 28pc and both kidneys in 22pc of cases. Malrotation, hydronephrosis and fusion were the most frequent anomalies associated with the ectopia. One patient developed neoplastic change.