ethmoid bone

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ethmoid bone

[′eth‚mȯid ‚bōn]
(anatomy)
An irregularly shaped cartilage bone of the skull, forming the medial wall of each orbit and part of the roof and lateral walls of the nasal cavities.
References in periodicals archive ?
In both summer and winter groups, the frequencies of maxillary sinus lesions did not show significant differences between the two genders (p>0.05), while the frequencies of frontal and ethmoid sinus lesions were significantly higher in men than in women (p<0.05).
Our current treatment regimen for hematomas within the ethmoid recess is to treat with intralesional formalin at 4 week intervals until they are <1cm in diameter and then perform laser ablation.
B) Computed tomography images before treatment show heterogeneous hypersignal in the ethmoid and left maxillary sinus (arrows).
In the etiopathogenesis, we think that this mucocele developed with obstruction of the frontal sinus ostium following trauma and led to bone damage by expanding towards the ethmoid sinus, because there was a history of trauma two years previously.
A computed tomography (CT) scan showed a soft-tissue mass with contrast enhancement originating in the ethmoid sinus and extending superolaterally to the left side and infiltrating through the floor and posterior table of frontal sinus.
Characteristically they arise from lateral nasal wall near the middle turbinate and extend into sinuses usually involving the maxillary and ethmoid sinuses.
Skull base coronal thin-section CT scan showed a fracture in the right side of ethmoid plate, and MR cisternography revealed high-signal-intensity CSF column in the right side of the floor of anterior cranial fossa and sinus [[Figure 1]-case 2].
It extends from cribriform plate of ethmoid bone to nostrils.
Both Propel and Propel mini are indicated for use following ethmoid sinus surgery.
In this study, the common anatomical variations found among the 360 CT scans evaluated were Pneumatized Agger nasi cells, Concha bullosa, Asymmetry ethmoidal roof, Haller cells, Asymmetry of ethmoid fovea, Anterior ethmoidal artery canal, Paradoxical bending of middle turbinate, Suprabullar Cells, Infrabullar Cells, and Onodi cells.
Paranasal mucoceles are most commonly found in the frontal sinus, and are occasionally found in the ethmoid and sphenoid sinuses.