Definition of Bulla
Bulla: A fluid-filled blister more than 5 mm (about 3/16 inch) in diameter with thin walls.
A bulla on the skin is a blister. A bulla on the pleura (the membrane covering the lung) is also called a bleb.
In Latin a bulla was a "bubble, stud or knob." It referred to any rounded protrusion, particularly one that was hollow or cystic.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=2547
Last Editorial Review: 4/27/2011 5:27:15 PM
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