bulla ethmoidalis


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Related to bulla ethmoidalis: Greater palatine canal, hiatus semilunaris

eth·moi·dal bul·la

[TA]
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(s): bulla ethmoidalis [TA]

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.
See also: bulla
References in periodicals archive ?
Enlarged bulla ethmoidalis was appreciated better in CT PNS when compared to DNE by 7%.
As far as ethmoidal air cells are concerned only bulla ethmoidalis can be visualised with DNE which also may not be visualised well in cases with concha bullosa or gross DNS.
The dissection performed on five cadaveric samples returned the average fracture force for three selected areas; Bulla Ethmoidalis, Middle Turbinate and Medial Wall of Maxillary sinus, which presented values of 9.
The sensitivity of diagnostic endoscopy for frontal recess, middle turbinate and bulla ethmoidalis was found as 91%, 84% and 76% respectively and for sphenoethmoidal recess hiatus semilunaris and middle turbinate as 80%, 53% and 67% respectively.