the distance between the highest level of the ethmoid labyrinth
and cribiform plate ranges from 0.
The polypoid tissue was removed, and the ethmoid labyrinth
was found to have more polypoid tissue.
In 1939, Van Alyea described pneumatization of the superior turbinate in his study of the ethmoid labyrinth
in 100 midsagittal cadaveric specimens.
Cells that are part of the anterior ethmoid labyrinth
drain into the middle meatus, and cells that belong to the posterior ethmoid labyrinth
drain into the superior meatus and occasionally into the supreme meatus.
13) They advocated resection of the dura over the cribriform plate, the olfactory bulb, the entire ethmoid labyrinth
, and the anterior and posterior walls of the frontal sinus.