| UB | ultimobranchial body; Unna boot; upper back; urinary bladder |
|---|---|
| UC | ulcerative colitis; ultracentrifugal; umbilical cord; unchanged; unclassifiable; unconscious; undiff... |
| UCG | ultrasonic cardiography; urinary chorionic gonadotropin |
| UCI | unusual childhood illness; urethral catheter in; urinary catheter in |
| UCO | ultrasonic cardiac output; urethral catheter out; urinary catheter out |
| supragingival calculus | Calcified plaques adherent to tooth surfaces coronal to the free gingival margin. Synonym: salivary calculus. (05 Mar 2000) |
|---|---|
| dendritic calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
| dental calculus | <dentistry> Hard, stonelike concretion, varying in colour from creamy yellow to black, that forms on the teeth or dental prostheses through calcification of dental plaque. (12 Dec 1998) |
| infection calculus | A calculus associated with infection and/or obstruction, usually composed of struvite (magnesium ammonium phosphate). Synonym: infection calculus. (05 Mar 2000) |
| intestinal calculus | A concretion in the bowel, either a coprolith or an enterolith. (05 Mar 2000) |
| oxalate calculus | A hard urinary calculus of calcium oxalate; some are covered with minute sharp spines that can abrade the renal pelvic epithelium, whereas others are smooth. (05 Mar 2000) |
| tonsillar calculus | A calcareous concretion in a distended tonsillar crypt. Synonym: tonsillar calculus, tonsillith. Origin: tonsillo-+ G. Lithos, stone (05 Mar 2000) |
| encysted calculus | A urinary calculus enclosed in a sac developed from the wall of the bladder. Synonym: pocketed calculus. (05 Mar 2000) |
| jackstone bladder calculus | <radiology> Spiculated calculus in urinary bladder, calcium oxalate monohydrate (12 Dec 1998) |
| urethral calculus | A stone impacted in urethra. May have formed proximally and gotten stuck there or may have formed in urethra; uncommon. (05 Mar 2000) |
| fibrin calculus | A urinary calculus formed largely from fibrinogen in blood. (05 Mar 2000) |
| uterine calculus | A calcified myoma of the uterus. Synonym: hysterolith, uterolith. (05 Mar 2000) |
| lacrimal calculus | A concretion in the lacrimal apparatus. Synonym: lacrimal calculus, ophthalmolith, tear stone. Origin: dacryo-+ G. Lithos, stone (05 Mar 2000) |