Assessment of Pneumatization of the Paranasal Sinuses Items
| Item | Anatomic Variant |
|---|---|
| 1 | Maxillary floor inferior to nasal floor |
| 2 | Supraorbital cell (air cell superior to anterior ethmoid artery) |
| 3 | Middle turbinate concha bullosa present |
| 4 | Frontal sinus present |
| 5 | Superior frontal sinus wall superior to supraorbital rim |
| 6 | Lateral frontal sinus wall lateral to medial edge of globe |
| 7 | Lateral frontal sinus wall lateral to midpupillary line |
| 8 | Lateral sphenoid sinus wall lateral to V2-VN line |
| 9 | Anterior clinoid process pneumatized |
V2, maxillary nerve canal; VN, Vidian nerve canal.