—Roscher1 reviewed malformations observed in the Norwegian University Clinic from 1914 to 1930. The material is divided into two groups: (1) cases in newly born infants (1,532 necropsies, which revealed 104 malformations, of which 40 were malformations of the kidney or urinary tract) and (2) cases in older children and in adults (3,995 necropsies, in which 104 malformations of the kidney or urinary tract were discovered).Hydronephrosis and anomalies of the ureter were common in the first group and were associated with stricture, valvular formation and dilatation of the ureter. The author stated, however, that he found hydronephrosis and dilatation of the ureter without any associated stricture or valvular formation. It is evident from the material that hydronephrosis and dilatation of the ureter should be regarded as malformations and not merely as secondary results of stricture.Roscher found that 9 of 11 cases of cystic kidney were
SCHOLL AJ, JUDD ES, VERBRUGGE J, HEPLER AB, GUTIERREZ R, O'CONOR VJ. A REVIEW OF UROLOGIC SURGERY. Arch Surg. 1934;28(4):786–808. doi:10.1001/archsurg.1934.01170160172010
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