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Related to bleb: pulmonary bleb


 [bul´ah] (pl. bul´lae) (L.)
1. a circumscribed, fluid-containing, elevated lesion of the skin, usually more than 5 mm in diameter. Called also blister and bleb.
2. an anatomical structure with a blisterlike appearance. adj., adj bul´late, bul´lous.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


1. A large flaccid vesicle.
2. An air-filled lung cyst within or contiguous to the visceral pleura, usually seen radiologically at the lung apex; more likely to develop and to rupture with resulting pneumothorax in taller people. Compare: bulla.
Farlex Partner Medical Dictionary © Farlex 2012


1. A small blister or pustule.
2. An air bubble.

bleb′by adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


Cell biology
A hemispherical protrusion from a cell’s surface, which may be filled with fluid or supported by a network of microfilaments.

A saccular subpleural expansion of lung tissue measuring up to 1 cm in greatest dimension (bullae are larger), often located at the apex, which is more common in tall male smokers and may be accompanied by spontaneous pneumothorax.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


1. A large, flaccid vesicle.
2. An acquired lung cyst, usually smaller than 1 cm in diameter, similar to but smaller than a bulla, which is thought to be the most common cause of spontaneous pneumothorax. Blebs occurmainly in the apex of the lung.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A blister-like collection of fluid, within or under the epidermis of the skin, usually containing serum or blood.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Patient discussion about bleb

Q. What's the best treatment for a blister?

A. use a clean needle and poke a small hole right at the base, between normal skin and the blister. Push the blister down, allow it to drain completely and put a bandaid over it; don't ever rip off blister skin allow it to fall off or reattach naturally.

Q. What are the causes of viral blisters on the skin? For a few months now I've been having these hard viral blisters on my fingers. The only way to get rid of them is with freezed carbon. It does go away with that treatment- after a few weeks but then a new one appears. How can I prevent it from "attacking" again??

A. These viral blisters you are describing are caused by HPV (papilloma virus), and are very hard to get rid of without treatment with freezed carbon. Many of us have the virus but not everyone gets the actual infection. There is not a proved way of preventing from it to happen again after treatment, unfortunately..

More discussions about bleb
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References in periodicals archive ?
(17) injected 0.03 mL of 40 mg/mL TA directly into the blebs of 6 eyes undergoing trabeculectomy.
Risk of suture associated complications like button holing of the conjunctival bleb or suture tract abscess, which might lead to endophthalmitis is removed.
The membrane blebs had presented in higher effect for cell with the CPD technique when it was compared with the HMDS technique.
Blue rubber bleb nevus syndrome (BRBNS) was first described by Gascoyen in 1860 and in 1958, Dr.
Occasionally, the surgeon may elect to 'needle' the bleb post-operatively if there is excessive conjunctival scarring process.
Till now, trabeculectomy is still the most efficient option for those with progressive glaucoma.[6] Cicatrix is the major cause of postoperative bleb failure and significantly affects the long-term success rate of trabeculectomy.[7],[8],[9],[10] The use of antimitotic agents such as 5-fluorouracil and mitomycin C (MMC) has been widely accepted as the golden standard of trabeculectomy, apparently reducing the incidence of scar formation and enhancing bleb surviving rate.
The large bleb of lidocaine utilized in this procedure provides analgesia of the area for an extended period of time.
Depending on the location of the blebs, they might have to turn me over mid-surgery, re-incise through my back, and break ribs to reach the necessary area.
[7] classified them as follows: rupture of bullae or blebs directly under the pleura during chemotherapy, formation of bronchopleural fistulas secondary to tumor necrosis, development of pleural lesions secondary to damage to the lung parenchyma induced by chemotherapy or radiation therapy, formation of cavities or emphysematous lesions in the peripheral tissues with subsequent rupture by the check-valve mechanism because of obstruction or stenosis of bronchi due to tumors, and elevation of intrathoracic pressure caused by vomiting as a side effect of chemotherapy, resulting in rupture of the pleura.
The information on external and internal bleb characteristics in trabeculectomy and NPDS has been found useful to understand the wound healing process and the reasons for different surgical outcomes.