| ureteral opening | The opening of the ureter in the bladder, situated one at each lateral angle of the trigone; wide gaping of the ostium usually indicates vesicoureteral reflux. Synonym: ostium ureteris, orificium ureteris, ureteral meatus, ureteral opening. (05 Mar 2000) |
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| ureteral pseudo-diverticulosis | <radiology> Proliferation of von Brunn's nests, often missed on IVP may lead to need retrograde urogram, pre-malignant may lead to TCC (12 Dec 1998) |