Primary site of involvement in four (4) patients was nasal cavity, ethmoid sinus
in three (3) and maxillary sinus in one (1) patient.
A concha bullosa of the middle turbinate most commonly drains into the anterior ethmoid sinus
In the paranasal sinuses, osteomas most commonly arise from the frontal and ethmoid sinus
This is followed by the ethmoid sinus
with a rate of 20-25%, maxillary sinus at 5-10%, and sphenoid sinus at a rate of 5-10% (2).
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.
Coronal CT is now identified as the most effective means to demonstrate the microanatomic communications between anterior ethmoid sinus
and the frontal and maxillary sinuses.
Squamous cell carcinoma accounts for 80% of sinonasal malignancy, arising most frequently in the maxillary sinus (25-63%), and less frequently in the nasal cavity (15-35%), ethmoid sinus
(10-25%) and least frequently in the frontal and sphenoid sinuses (1%).
Most mucoceles occur in the frontal sinus (60%), followed by the ethmoid sinus
(30%), the maxillary sinus (10%), and very rarely in the sphenoid sinus.
Frontal sinus was the most common primary site (62%), followed by ethmoid sinus
Computerized tomography (CT) scan of the orbits revealed bilateral maxillary sinusitis (Figure 2) and preseptal and subperiosteal phlegmon involving the medial wall of the orbit and dehiscence of the left ethmoid sinus
roof at the level of the cribriform plate.
In April 1923, Sisler was reported to have been hospitalized for surgery for an "inflamed ethmoid sinus
Some people are born with a congenital dehiscence of the lamina papyracea, and in that case periosteum will be the only thing separating the ethmoid sinus
from the orbit.
The frontal bone and the ethmoid sinus
wall were markedly thickened but with no evidence of boney erosions (Fig.
Results of the above studies indicated right ethmoid sinusitis with destruction of the ethmoid septum, forming a soft tissue mass extending from the right ethmoid sinus
into the right orbit.
The products release a steroid with anti-inflammatory properties directly into the sinus lining, then dissolve, maintaining the open passages created in ethmoid sinus