| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |
|---|---|
| RALPH | renal-anal-lung-polydactylyhamartoblastoma [syndrome] |
| RAP | recurrent abdominal pain; regression-associated protein; renal artery pressure; resident assessment ... |
| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, av... |
| RBF | regional blood flow; regional bone mass; renal blood flow |
| follicular abscess | An abscess in a hair, tonsillar, or other follicle. (05 Mar 2000) |
|---|---|
| lateral alveolar abscess | An alveolar abscess located along the lateral root surface of a tooth. Synonym: pericemental abscess. (05 Mar 2000) |
| lateral periodontal abscess | An abscess that forms at the depth of a periodontal pocket due to multiplication of pyogenic microorganisms or the presence of foreign material. (05 Mar 2000) |
| liver abscess | A condition where there is a pus-filled cavity in the liver secondary to a bacterial infection. Liver abscess may result from sepsis, intestinal perforation, post-operative infection, appendicitis, diverticulitis, trauma (to the liver) or cholangitis. Other nonbacterial causes of liver abscess include amoebiasis, due to infection with Entamoeba histolytica (protozoan). (27 Sep 1997) |
| liver abscess, amebic | Liver abscess caused by entamoeba histolytica. (12 Dec 1998) |
| lung abscess | A collection of pus within a cavity in the lung due to a bacterial infection (bacterial endocarditis). Certain bacteria (Staphylococcus, Pseudomonas, Tuberculosis, Klebsiella) are more likely to cavitate the lung and cause abscess formation. (27 Sep 1997) |