Bleb

For the cytoplasmic extension present during apoptosis please see Bleb (cell biology)

In medicine, bleb is a large blister filled with serous fluid. Blebs can form in a number of tissues due to different pathologies, including frostbitten tissues, and as a cause of spontaneous pneumothorax. In the lungs, a bleb is a collection of air within the layers of the visceral pleura. In ophthalmology, blebs may be formed intentionally in the treatment of glaucoma.

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In geology, mineralogy, petrology, and related geochemical sciences, bleb is a noun or descriptive term meaning the inclusion of a mineral within a larger mineral that is bubble-like. Commonly used for small inclusions, such as ones tens of micrometres in size. An example usage in the literature is a bleb of sylvite in chlorite.

See also

• Blue rubber bleb nevus syndrome
• Glaucoma valve

References

• Sunil JS. 2005. Inadvertent filtering bleb following sutureless cataract surgery. Indian Journal of Ophthalmology, 53(3): 196-198
• Kamenetsky VS et al. Chloride and carbonate immiscible liquids at the closure of the kimberlite magma evolution (Udachnaya-East kimberlite, Siberia) Chemical Geology, Volume 237, Issues 3-4, 5 March 2007, Pages 384-400