| bleb vs. Bulla | <radiology> Bleb collection of air within layers of viscera pleura, bulla air-filled, thin-walled space within lung (destruction of alveoli), cyst congenital: bronchial or bronchogenic cyst (12 Dec 1998) |
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| bleb | <cell biology> Protrusion from the surface of a cell, usually approximately hemispherical, may be filled with fluid or supported by a meshwork of microfilaments. (18 Nov 1997) |
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| blue rubber-bleb nevi | A syndrome characterised by erectile, easily compressible, thin-walled haemangiomatous nodules, widely distributed in the skin and in the alimentary canal, and sometimes in other tissues; lesions in the gut may perforate or cause haemorrhage, and the patient may be anaemic from continual bleeding. (05 Mar 2000) |
| blue rubber bleb nevus syndrome | <radiology> Bean syndrome, sporadic (some autosomal dominant), rubbery, raised blue-black skin nevi (cavernous haemangiomata, 0.1 - 5 cm), GI mucosal haemangiomata, bowel: polypoid filling defects of varying sizes, visceral haemangiomata (by angio) associated with: leukaemia, medulloblastoma, hypernephroma, Mafucci syndrome More info: blue rubber bleb nevus syndrome (12 Dec 1998) |
| bulla | Origin: L. Bulla bubble. See Bull an edict. 1. <medicine> A bleb; a vesicle, or an elevation of the cuticle, containing a transparent watery fluid. 2. <anatomy> The ovoid prominence below the opening of the ear in the skulls of many animals; as, the tympanic or auditory bulla. 3. A leaden seal for a document; especially. The round leaden seal attached to the papal bulls, which has on one side a representation of St. Peter and St. Paul, and on the other the name of the pope who uses it. 4. <zoology> A genus of marine shells. See Bubble shell. Source: Websters Dictionary (01 Mar 1998) |
| bulla ethmoidalis | A bulging of the inner wall of the ethmoidal labyrinth in the middle meatus of the nose, just below the middle nasal concha; it is regarded as a rudimentary concha. Synonym: bulla ethmoidalis. (05 Mar 2000) |
| bulla tympanica | The bony capsule enclosing the middle ear of the cat and dog. (05 Mar 2000) |
| pulmonary bulla | An air-filled blister on the surface of the lung, a similar abnormality within the lung presenting as a thin-walled cavity. (05 Mar 2000) |
| ethmoidal bulla | A bulging of the inner wall of the ethmoidal labyrinth in the middle meatus of the nose, just below the middle nasal concha; it is regarded as a rudimentary concha. Synonym: bulla ethmoidalis. (05 Mar 2000) |