Are Haller cells common?

Conclusion: Anatomical variations of the paranasal sinus region like Haller cells are quite common and they must be searched for by the surgeons planning any endoscopic sinus surgery.

What are sinus cells?

The ethmoidal air cells, also known less commonly as the ethmoidal sinuses, form one of the four pairs of paranasal sinuses. They are located within the single, midline ethmoid bone.

What is a Haller cell?

Haller’s cells are defined as air cells situated beneath the ethmoid bulla along the roof of the maxillary sinus and the most inferior portion of the lamina papyracea, including air cells located within the ethmoid infundibulum.

What are ethmoid air cells?

The ethmoid sinuses or ethmoid air cells of the ethmoid bone are one of the four paired paranasal sinuses. The cells are variable in both size and number in the lateral mass of each of the ethmoid bones and cannot be palpated during an extraoral examination. They are divided into anterior and posterior groups.

What are onodi cells?

The Onodi cell is a posterior ethmoid air cell that lies superior to the sphenoid sinus and is in close proximity to at least one optic nerve or internal carotid artery (ICA). This close proximity of the Onodi cells to the optic nerve and ICA is a risk factor for surgical complications.

Can Haller cells be removed?

Surgical intervention is indicated when a Haller’s cell contributestoostiomeatalcomplexobstructionandinflam- mation of the sinuses. The cell is approac hed through the middle meatus by using a microdebrider to remove the uncinate process, including its inferior attachment (figure 2, A and B).

What are the 4 types of sinuses?

There are four paranasal sinuses, each corresponding with the respective bone from which it takes its name: maxillary, ethmoid, sphenoid, and frontal. Sinuses also exist in the dura of the brain, which includes the superior sagittal, straight, and the sigmoid, among others.

What are the 4 sinuses?

Four sets of paired sinuses are recognized: maxillary, frontal, sphenoid, and ethmoid (see the image below). Sinuses, anterior and sectioned views.

Can Haller cells cause headaches?

Haller’s cells may cause recurrent or chronic sinusitis and persistent sinugenic headache, without significant findings on physical examination including nasal endoscopy. The presence of Haller’s cells on coronal CT in a patient with corresponding symptoms deserves consideration as the potential cause of the symptoms.

What is the function of the ethmoid?

The primary function of the ethmoid sinus, like all the sinus cavities in the skull, is to provide lubrication (mucus) to the inner nose. In addition to creating mucus, the sinuses — including the ethmoid sinus — reduce the skull’s overall weight and make one’s voice more resonant as they grow in size during puberty.

Is ethmoid sinus present at birth?

Ethmoid sinus. Located inside the face, around the area of the bridge of the nose. This sinus is present at birth, and continues to grow.

Are onodi cells normal?

Conclusion: Onodi cell is the most common anatomical variation of ethmoidal sinuses with higher prevalence among Asian populations. Their patterns of pneumatization are important clinically to avoid surgical damage to optic nerve and internal carotid artery canals.