—Weyrauch1 stated that the anomalies of renal rotation, exclusive of ectopic and fusional deformities, may be divided into four main types: (1) ventral, or nonrotation (rarely excessive rotation), (2) ventromedial, or incomplete rotation, (3) lateral rotation (reverse or excessive rotation) and (4) dorsal (excessive or reverse) rotation.The change in the position of the hilus renalis which takes place during early embryonic life results from a differential regional growth within the metanephros rather than from actual rotation of the entire organ. Hypotheses concerning the causation of anomalous rotation were advanced by Weyrauch, who emphasized such intrarenal forces as the organizing activity of the ureteral tree as opposed to any extrarenal mechanical influence. He discussed the. clinical aspects of the condition and summarized 19 cases.Bernhard-Kreis2 reported a case of malformation in the urinary tract in which the patient, a girl 4 months old, died after four
SCHOLL AJ, HINMAN F, VON LICHTENBERG A, et al. REVIEW OF UROLOGIC SURGERY. Arch Surg. 1940;40(3):539–583. doi:10.1001/archsurg.1940.04080020168009
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