Tumor extension and stage
| Patient | Location of Extension* | Stage | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | ||
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||||||
| 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIB | ||||||||||
| 3 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||||||||||
| 4 | 1 | 1 | 1 | IIIA | |||||||||||||||
| 5 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||||||||
| 6 | 1 | 1 | 1 | 1 | IIIA | ||||||||||||||
| 7 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | |||||||||||
| 8 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | |||||||||||
| 9 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | |||||||||
| 10 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||||||||
| 11 | 1 | 1 | 1 | 1 | 1 | IIIA | |||||||||||||
| 12 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIB | ||||||||
| 13 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||||||||||
| 14 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | |||||||||
| 15 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||||||||||
| 16 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||
| 17 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | |||||||||||
| 18 | 1 | 1 | 1 | 1 | IIIA | ||||||||||||||
| 19 | 1 | 1 | 1 | 1 | 1 | 1 | IIIA | ||||||||||||
| 20 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | IIIB | ||||||||
* Preoperative CT scans were examined for 18 locations of tumor extension, as follows: 1 indicates present; 2, pterygopalatine fossa; 3, inferior orbital fissure; 4, orbital apex; 5, cavernous sinus (anterior); 6, infratemporal fossa; 7, temporal fossa; 8, interpterygoid fossa; 9, paratubal region; 10, foramen ovale and foramen rotondum; 11, cavernous sinus (lateral); 12, parapharyngeal space; 13, sphenoid sinus; 14, base of pterygoids and clivus; 15, cavernous sinus (medial); 16, foramen lacerum; 17, optic canal; and 18, anterior fossa.