Sudden Hemianopsia Secondary to Ethmoid Sinus Mucocele.

1 Computed tomography of the skull in axial (A) and coronal (B) sections, showing oval lesion of soft tissue density measuring 2 cm in its longest axis and located in the interior

9 Preoperative coronal section computed tomography highlighting the right sphenoid heterogeneous opaci fi cation with signs of remodeling in the wall of the sphenoid sinus and

image, after contrast, showing a large intra and extra-orbital lesion on the left, with extension to the adjacent soft tissues and intense heterogeneous contrast enhancement..

Expansive lesion (arrows) of maxillary sinus (T), with medial and anterolateral walls erosion, limited by: superiorly – orbit floor erosion and extension to the ethmoid

In the present issue, the interesting article “Com- puted tomography assessment of the ethmoid roof: a rel- evant region at risk in endoscopic sinus surgery” ap- proaches

Type II frontal cells cor- respond to two or more anterior ethmoid cells which pneumatize above the agger nasi cell, sometimes extending towards the interior of the frontal

Additionally, the following findings were observed: frontal and ethmoid sinuses hypoplasia, nasal sep- tum deviation to the left, ethmoid bulla also to the left, and a bilateral

Computed tomography (CT) evidenced a lesion with soft tissue consistency at the ethmoid, right maxillary sinus, and nasal cavity, showing erosion of the lamina papyracea,