Figure 4: Sagittal CT demonstrating the surgical strategy to open the posterior ethmoid. After opening the basal lamella of the middle turbinate (1) directly above the horizontal part (2), the superior meatus (3) is reached. (4) = ethmoid bulla.
Figure 4: Sagittal CT demonstrating the surgical strategy to open the posterior ethmoid. After opening the basal lamella of the middle turbinate (1) directly above the horizontal part (2), the superior meatus (3) is reached. (4) = ethmoid bulla.