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.

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]

bulla

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

bul′lous adj.

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.

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.

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]

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

bulla

A large blister or vesicle. A thin-walled abnormal cavity filled with liquid or a gas.

bulla

a bony projection.

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.

bul·la

, pl. bullae (bul'ă, -ē)
A fluid-filled dermatologic blister greater than 1 cm in diameter.
[L. bubble]

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
References in periodicals archive ?
Bullas in at court Lynne Holden, who was celebrating her birthday that evening, told the court that Hunter shouted abuse at herself and her friends and refused to calm down.
Conclusion: The facial nerve was the key anatomical landmark in locating the bulla. By retrograde tracing of the facial nerve, it was possible to find the bulla ventral (inferior) to the main trunk.
Mr Bullas's friend Allan Cameron said yesterday: "We're all stunned by what has happened."
To find out more about Matt Bullas, please visit his website at http://www.mattbullas.com/, or to enquire about his consultancy services email: matt@mattbullas.com
Matt Bullas added: "We're not saying this is the death of TV, but we envisage seeing more multimedia opportunities being developed in partnership with TV to encourage cyber conversation, especially when you consider that 40 per cent of the younger audience are on social media at the same time as watching TV.
Peacock said in a statement that Michael Bullas intended to 'pursue other interests' and had agreed not to compete with Peacock for a year.
Black Country coroner Robin Balmain heard Mr Bullas had apparently used a crane to lift the vehicle but had not secured it properly using A-frames and it fell out of a cradle, crushing him as he lay on the floor beneath it, while clutching a ratchet drive.
Birmingham Post competition winner Faye Bullas and her family were treated to an exclusive dinner party courtesy of Conran restaurants.
Camira Group Ltd, with offices in Mirfield and manufacturing in Meltham, has appointed Grant Russell to the top job in succession to Steve Bullas who becomes group chairman.
He asked Walsall Police chief Kevin Bullas to donate money from the Police Property Fund to raise the pounds 800 needed for the monitor.
Nigel Bullas, of Cleckheaton-based Clough & Company, said: "This scheme is great news for businesses and it's already having a positive impact, enabling businesses to reduce their National Insurance Contributions by up to PS2,000 in every tax year.