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Article
February 1934

THE PART PLAYED BY URETERAL INFLAMMATION IN DILATATION OF THE URETER: A POSTMORTEM STUDY

Arch Surg. 1934;28(2):296-306. doi:10.1001/archsurg.1934.01170140076004
Abstract

That dilatation of the ureter will result from obstruction is apparent, but that it may be acquired in the absence of any form of mechanical obstruction is perhaps less obvious and at first glance paradoxical. Atony of the ureter, by which is meant loss of functional ability of the muscle of the ureter, whereby peristalsis is weak or absent, was first recognized by Russian observers as a cause of ureteral dilatation. Further, they conceived the idea that atony and dilatation may result from inflammation. In this country Braasch repeatedly has called attention to this inflammatory dilatation, but by most observers such a possibility has not been appreciated or has been frankly doubted.

It is also true that certain obstructive factors commonly assumed to cause ureteral dilatation are in fact of obscure mechanism. Thus, there has been much speculation over the ureteral dilatation which accompanies pregnancy, and also over that which

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