Abstract
Summary: A case of crossed renal ectopia with fusion and one of solitary pelvic kidney are reported, both these conditions being rare congenital abnormalities. References are made to previous literature and available information summarised. Embryological factors in relation to aetiology are discussed.I wish to thank Dr G. J. Cunningham and Professor G. Hadfield for their helpful criticism and advice, and Mr N. K. Harrison for the photographs.

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