Bleb (medicine)
Bleb (medicine) | |
---|---|
Blue rubber bleb nevus syndrome |
In medicine, a bleb is a blister-like protrusion (often hemispherical) filled with serous fluid. Blebs can form in a number of tissues by different pathologies, including frostbite and can "appear and disappear within a short time interval".
In pathology pulmonary blebs are small subpleural thin-walled air-containing spaces, not larger than 1-2 cm in diameter. Their walls are less than 1 mm thick. If they rupture, they allow air to escape into pleural space, resulting in a spontaneous pneumothorax.[1][2]
In ophthalmology, blebs may be formed intentionally in the treatment of glaucoma. In such treatments, functional blebs facilitate the circulation of aqueous humor, the blockage of which will lead to increase in eye pressure. Use of collagen matrix wound modulation device such as ologen during glaucoma surgery is known to produce vascular and functional blebs, which are positively correlated with treatment success rate.[3][4][5][6]
In the lungs, a bleb is a collection of air within the layers of the
In breasts, a bleb is a milk blister (also known as blocked nipple pore, nipple blister, or "milk under the skin").[7]
Pulmonary bleb
A pulmonary bleb is a small air collection found in the upper lobe of the lung located between the lung and the
References
- ISSN 2078-1520.
- ISSN 1471-0072.
- PMID 26078875.
- S2CID 20615016.
- S2CID 15912536.
- S2CID 22594085.
- ^ White spot on the nipple
- ^ Gaillard, Frank (February 16, 2021). "Radiology Reference Article". Radiopaedia. Retrieved November 18, 2023.
External links
- Medical definition of bleb on MedicineNet.com
- Moorfields Bleb Grading System