The authors have performed an histological study on the ureterectasias found at the Urologic Department of the Civil Hospital of Padua. After stressing that in their experience they have encountered an ‘idiopatic’ ureteral dilatation, for, in all the cases it has been possible to show an obstructive alteration. The authors present the results which come from the histological research performed on the nervous tissue of the studied ureteral segments. In the light of the data obtained, the authors conclude that when only a dilatation exists, the nervous part of the ureteral wall is still preserved and can guarantee a sufficient trophic and tonic function and hence a functional recovery of the ureter, when the obstacle responsible of the urinary stasis has been removed. In those cases in which an inflammatory process is associated with the dilatation, a conspicuous change of the ureteral innervation is to be seen. In the present circumstances the outcome of a reconstructive intervention is strictly bound to the grade of the lesion, as an irreversible lesion of the nervous tissue does not permit the restoration of the ureteral function, even after a technically perfect intervention.

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© 1967 S. Karger AG, Basel
1967
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