| Mercier's bar | A fold of mucous membrane extending from the orifice of the ureter of one side to that of the other side. Synonym: plica interureterica, bar of bladder, Mercier's bar, plica ureterica, torus uretericus, ureteric fold. (05 Mar 2000) |
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| Mercier's sound | A catheter the beak of which is short and bent almost at a right angle. (05 Mar 2000) |
| Mercier's valve | An occasional fold of mucosa of the bladder partially occluding the ureteral orifice. (05 Mar 2000) |
| median bar of Mercier | A prominent band of fibromuscular tissue involving the interureteric ridge or neck of the urinary bladder, occasionally resulting in urinary obstruction. (05 Mar 2000) |
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| Mercier | Louis A., French urologist, 1811-1882. See: Mercier's bar, Mercier's sound, Mercier's valve, median bar of Mercier. (05 Mar 2000) |