TABLE 4.
Classification of sphenoid sinus septum morphology and complexity based on coronal MR imaging in 178 individuals*
| Morphological Type (% of studies) |
No. of Septa |
Orientation of Septa |
Position/Symmetry | No. of Studies (%) |
|---|---|---|---|---|
| simple (70.7) |
0 | NA | NA | 16 (9.0) |
| 1 | vertical | midline/symmetric | 33 (18.5) | |
| 1 | vertical | eccentric/asymmetric | 61 (34.2) | |
| 2 | vertical | tripartite/symmetric | 16 (9.0) | |
| Complex (29.3) |
1 | horizontal | any | 1 (0.6) |
| 2 | vertical | asymmetric | 24 (13.5) | |
| 2 | horizontal + vertical | any | 17 (9.6) | |
| ≥3 | any | any | 10 (5.6) | |
| total | 178 (100) |
*
100 healthy adults and 78 patients with sellar tumors.