bulla

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bulla

 [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.

bul·la

, gen. and pl.

bul·lae

(bul'ă, -ē),
1. A fluid-filled blister greater than 1 cm in diameter appearing as a circumscribed area of separation of the epidermis from the subepidermal structure (subepidermal bulla) or as a circumscribed area of separation of epidermal cells (intraepidermal bulla) caused by the presence of serum, or occasionally by an injected substance.
2. A bubblelike structure.
[L. bubble]
Farlex Partner Medical Dictionary © Farlex 2012

bulla

(bo͝ol′ə)
n. pl. bullae (bo͝ol′ē)
Medicine A large blister or vesicle.

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

bulla

Anatomy
A rounded thin-walled bony prominence.
 
Comparative anatomy
A ovoid prominence below the opening of the ear in the skulls of some mammals, as in the tympanic or auditory bulla.

Dermatology
A large bleb or vesicle filled with serous fluid which may correspond to a separation of the epidermal-dermal junction.
 
Pulmonology
A bleb, see there.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

bulla

plural, bullae Anatomy A rounded thin-walled bony prominence Dermatology A large bleb or vesicle filled with serous fluid which may correspond to a separation of the epidermal-dermal junction. See Pemphigus Pulmonology See Emplysema.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

bul·la

, pl. bullae (bul'ă, -ē)
1. A large blister appearing as a circumscribed area of separation of the epidermis from subepidermal structures or as a circumscribed area of separation of epidermal cells caused by the presence of serum, or an injected substance.
2. A bubblelike structure.
[L. bubble]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

bulla

(bul'a) plural.bullae [L. bulla, bubble, knob]
Enlarge picture
BULLAE OF IMPETIGO
1. A large blister or skin vesicle filled with fluid See: illustration; pompholyx
2. A bleb.

bulla ethmoidalis

A rounded, thin-walled, bony projection into the middle meatus of the nose underneath the middle turbinate bone, formed by an anterior ethmoid sinus.

bulla ossea

The dilated portion of the bony external meatus of the ear.
illustration
Medical Dictionary, © 2009 Farlex and Partners

bulla

A large blister or vesicle. A thin-walled abnormal cavity filled with liquid or a gas.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

bulla

a bony projection.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

bulla 

A fluid-filled blister appearing on the surface of the cornea when it is severely oedematous (increased thickness of more than 25%). It gives rise to a reduction of visual acuity and pain on rupturing. Example: bullous keratopathy. Plural: bullae. See bullous keratopathy.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

bul·la

, pl. bullae (bul'ă, -ē)
A fluid-filled dermatologic blister greater than 1 cm in diameter.
[L. bubble]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about bulla

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 bulla
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