| Branches of the nasal nerve have been described passing to the frontal, ethmoidal, and sphenoidal sinuses. |
|
| The mass was centred in the anterior ethmoidal air cell and extended to the lateral margin of the right frontal sinus. |
|
| Although squamous cell carcinoma is the most common paranasal tumour, adenocarcinoma is the most common ethmoidal sinus tumour. |
|
| Most involved the frontal sinus, although the maxillary sinus, ethmoidal cells, and sphenoidal sinus can also be affected. |
|
| The right maxillary sinus, both sphenoids, and the left ethmoidal air cells were clear. |
|
| At this point, a medial canthal incision was made, and vessels extending over the nasal bridge were clipped, as was the anterior ethmoidal artery. |
|
| The Partition or Sepiment which divides the great Cavity of the Nose, the Crista Galli, and the Ethmoidal bone is not bony in the Foetus. |
|
