Barotitis: Middle ear problems due to changing atmospheric pressures, as when a plane descends to land. The problems include ear pain, ringing, diminished hearing and, sometimes, dizziness. The word barotitis (pronounced bar-o-tit-is) is compounded from bar- as in barometer + otitis meaning inflammation of the ear. Alternate terms include aerotitis, aerotitis media, barotitis media, and otic barotrauma.
Barotrauma: Trauma caused by rapid or extreme changes in air pressure, especially affecting enclosed cavities within the body such as the middle ear (otic barotrauma), the sinuses (sinus barotrauma), and the lungs (pulmonary barotrauma). See also: Otic barotrauma; Sinus barotrauma; and Pulmonary barotrauma.
- Barr body
Barr body: A microscopic feature of female cells that is due to the presence of two X chromosomes, one of which is inactive and crumples up.
- Barrett esophagus
A complication of chronic severe gastrointestinal reflux disease (GERD) that involves a change in the type of cells that line the inner wall of the lower esophagus. There is a small but definite increased risk of cancer of the esophagus (adenocarcinoma) in people with Barrett esophagus. The diagnosis of Barrett esophagus is made on seeing […]
- Barrett's esophagus
A complication of severe chronic GERD (gastrointestinal reflux disease) involving changes in the cells of the tissue that line the bottom of the esophagus. These esophageal cells become irritated when the contents of the stomach back up (refluxes) and there is a small but definite increased risk of adenocarcinoma (cancer) of the esophagus. The diagnosis […]
- Bartholin's glands
Bartholin’s glands: A pair of glands between the vulva and the vagina that produce lubrication in response to stimulation. With a second pair of nearby glands called the lesser vestibular glands, they act to aid in sexual intercourse. Also called the greater vestibular glands.