1. Six cases of solitary renal cyst were presented mainly for radiological evaluation together with each one of unilateral multicystic kidney and renal abscess. 2. X-ray diagnosis of solitary renal cyst might consist of KUB, IVP, retrograde pyelography, nephrotomography, retroperitoneal pneumography, renal arteriography, and renal cystography. Discussion was made on their usefulness, diagnostic criteria and differential diagnosis.
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