| 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 |
| cystine calculus | A calculus composed of cystine, soft and faintly radiopaque. (05 Mar 2000) |
|---|---|
| preputial calculus | A calculus occurring beneath the foreskin. Synonym: postholith. (05 Mar 2000) |
| primary renal calculus | A calculus formed in an apparently healthy urinary tract, usually composed of oxalates, urates, or cystine. (05 Mar 2000) |
| salivary calculus | A calculus in a salivary duct or gland. Synonym: supragingival calculus. (05 Mar 2000) |
| hemic calculus | An angiolith or concretion of coagulated blood. Synonym: hemic calculus. (05 Mar 2000) |
| prostatic calculus | <urology>A concretion formed in the prostate gland, composed chiefly of calcium carbonate and phosphate (corpora amylacea). Synonym: prostatolith. (05 Mar 2000) |
| secondary renal calculus | A calculus associated with infection and/or obstruction, usually composed of struvite (magnesium ammonium phosphate). Synonym: infection calculus. (05 Mar 2000) |
| pulp calculus | A calcified body found in the pulp chamber of a tooth; may be composed of irregular dentin (true denticle) or due to ectopic calcification of pulp tissue (false denticle). Synonym: denticle, pulp calcification, pulp calculus, pulp nodule, pulp stone. Origin: endo-+ G. Lithos, stone (05 Mar 2000) |
| serumal calculus | A greenish or dark brown calcareous deposit on the tooth, usually apical to the gingival margin. Synonym: haematogenetic calculus. Synonym: subgingival calculus. (05 Mar 2000) |
| nasal calculus | <medicine> A concretion formed within the cavities of the nose. Origin: Rhino-, -lith. Source: Websters Dictionary (01 Mar 1998) |
| staghorn 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) |
| nephritic calculus | An obsolete term for renal calculus. (05 Mar 2000) |
| struvite calculus | A calculus in which the crystalloid component consists of magnesium ammonium phosphate. (05 Mar 2000) |
| subgingival calculus | Calcareous deposit found on the tooth apical to the gingival margin. Synonym: serumal calculus. (05 Mar 2000) |
| supragingival calculus | Calcified plaques adherent to tooth surfaces coronal to the free gingival margin. Synonym: salivary calculus. (05 Mar 2000) |