| IUM | internal urethral meatus; intrauterine [fetus] malnourished; intrauterine membrane |
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| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
| LES | Lower Esophageal Sphincter; 하부 식도 괄약근 |
| LESP | Lower Esophageal Sphincter Prssure |
| UES | Upper Esophageal Sphincter; 상부 식도 괄약근 |
| 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) |
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| urethral carina of vagina | The lower part of the anterior column of the vagina, in relation with the urethra. Synonym: carina urethralis vaginae, carina vaginae. (05 Mar 2000) |
| urethral caruncle | A small, fleshy, sometimes painful protrusion of the mucous membrane at the meatus of the female urethra; it may be telangiectatic, papillomatous, or composed of granulation tissue. (05 Mar 2000) |
| urethral crest | Longitudinal mucosal fold in the dorsal wall of the urethra. See: urethral crest of female, urethral crest of male. Synonym: crista urethralis. (05 Mar 2000) |
| urethral crest of female | A conspicuous longitudinal fold of mucosa on the posterior wall of the urethra. Synonym: crista urethralis femininae. (05 Mar 2000) |
| urethral crest of male | A longitudinal fold on the posterior wall of the urethra extending from the uvula of the bladder through the prostatic urethra; prominent in its midportion is the seminal colliculus. Synonym: crista phallica, crista urethralis masculinae. (05 Mar 2000) |
| urethral dilation | Increasing the caliber of the urethra by passage of a dilator. (05 Mar 2000) |
| urethral diverticulum | A sac-like outpouching of the urethral wall, either from a congenital defect or, more commonly, as a result of chronic penetrating inflammation. (05 Mar 2000) |
| urethral fever | An elevation of temperature, usually slight and transitory, following catheterization of the urethra, or the passage of blood clots, gravel, or a calculus. Synonym: catheter fever, urethral fever. (05 Mar 2000) |
| urethral glands | See: glands of the female urethra, glands of the male urethra. (05 Mar 2000) |
| urethral groove | The groove on the ventral surface of the embryonic penis which ultimately is closed to form the penile portion of the urethra. (05 Mar 2000) |
| urethral haematuria | Haematuria in which the site of bleeding is in the urethra. (05 Mar 2000) |
| urethral lacuna | One of a number of little recesses in the mucous membrane of the spongy urethra into which empty the ducts of the urethral glands. Synonym: lacuna urethralis, Morgagni's lacuna. (05 Mar 2000) |
| urethral neoplasms | Neoplasms or tumours of the urethra. This condition is relatively uncommon and is the only cancer of the urinary system that has a higher incidence rate in females than males. Squamous cell carcinoma is the most frequent histologic type. (12 Dec 1998) |
| urethral obstruction | Obstruction anywhere along the urethra. (12 Dec 1998) |