bulla ethmoidalis

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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 ?
At the time of surgery a well-defined ethmoid bulla was encountered in the left middle meatus (figure, B).
A cell that pneumatises into the frontal bone is named a frontal cell of the anterior ethmoid or bulla frontalis, and lies above the ethmoid bulla.
The Chamberlain Group Maxillary Clinical Sinus Trainer features a life-like patient head and neck with key anatomical landmarks such as the maxillary ostium, the uncinate process, the ethmoid bulla, the nasal septum, and the turbinates.
Nasal endoscopy can identify edema or erythema of the middle meatus or ethmoid bulla, but a plain sinus radiograph "is helpful in confirming the diagnosis of symptomatic patients with equivocal findings, particularly when specific criteria for radiographic interpretation are applied.
Endoscopic ethmoidotomy was carried out through the anterior face of the ethmoid bulla (figure, B).
The ostium of the ethmoid bulla is usually difficult to locate even with the use of a telescope.
Endoscopic ethmoidectomy is usually performed through the middle meatus and then through the ethmoid bulla in a technique that was introduced by Kennedy in 1985.
During surgery, the left ethmoid bulla was opened anteriorly (figure, A).
The most common sites of origin for nasal polyposis are where the uncinate process, the middle concha, and the ethmoid bulla are in contact with each other.
We describe the case of a 32-year-old woman with an isolated cementoossifying fibroma of the right ethmoid bulla, and we review the diagnosis, differential diagnosis, and management of this tumor
The patient was taken to the operating room, where the anterior face of the ethmoid bulla was opened endoscopically.
The right nasal cavity was remarkable only for extensive remodeling of the anterior ethmoid bulla, inferior turbinate, septum, and lateral nasal wall.