11/12. The signs of a passed ureteral stone.Ten patients with typical renal colic fortuitously passed a urinary calculus, which was retrieved during or shortly after excretory urography. Characteristic alterations in the urogram included: (a) no delay in passage of contrast medium down the entire length of the ureter, (b) decreased radiodensity of contrast on the affected as compared to that of the normal side, (c) dilatation of the ureter on the affected side and (d) a hazy appearance of the ureter with poor definition of its borders. Post-obstructive diuresis explains these changes. This constellation of findings, with accompanying absence of an opaque calculus on the plain film, correctly diagnoses a recently passed stone. The sign complex indicates that obstruction has been relieved, even when the calculus remains in situ.- - - - - - - - - - ranking = 1keywords = calculus (Clic here for more details about this article) |
12/12. "Mirror pain" as an unusual presentation of renal colic.Although most patients suffering from pain related to upper urinary tract stones feel the discomfort on the same side as the stone, rarely it is perceived on the opposite side. We sought to identify the prevalence of this clinical scenario and to review possible explanations. The charts and x-rays of all patients with unilateral, symptomatic, radiologically identifiable upper urinary tract stones, seen at an outpatient clinic between June 1993 and August 1996, were reviewed retrospectively in terms of the side of the discomfort in comparison to the side of the stone. Three of 631 patients presented with contralateral or "mirror pain" secondary to a renal or ureteric calculus. In each case the symptoms resolved completely following successful extracorporeal shock wave lithotripsy or spontaneous passage of the stone.- - - - - - - - - - ranking = 0.33333333333333keywords = calculus (Clic here for more details about this article) |
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