The solitary renal calyx and papilla in human kidneys

Bilateral unipapillary kidneys and haematuria

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Unipapillary kidney: a case report and literature review

The congenital variant of the unipapillary kidney is associated with an abnormal contralateral kidney and frequently with anomalies of other systems as well. An additional case is presented and a review of the literature is discussed.

Unicaliceal kidney associated with posterior urethral valves

Unicaliceal kidneys are normal in several mammals, including monkeys. There have been 10 patients with this anomaly reported on in the literature and most have had additional anomalies of the urinary tract. We report on a man with a unicaliceal kidney who also had posterior urethral valves.