From: Treatment of malignant tumors of the skull base with multi-session radiosurgery
 | Study Group |
---|---|
Volume (cc) | Â |
   Min | 3.2 |
   Max | 206.5 |
   Mean | 41.6 |
   Median | 18.3 |
Histology | Â |
   Adenoid cystic carcinoma | 5 |
   Breast cancer | 1 |
   Chondrosarcoma | 1 |
   Ewing sarcoma | 2 |
   Hemangiopericytoma | 1 |
   Hepatocellular carcinoma | 1 |
   Leiomyosarcoma | 1 |
   Melanoma | 3 |
   Papillary thyroid carcinoma | 1 |
   Parotid adenocarcinoma | 2 |
   Renal cell carcinoma | 3 |
   Rhabdomyosarcoma | 2 |
   Spindle cell carcinoma | 1 |
   Squamous cell carcinoma | 6 |
   Transitional cell carcinoma | 1 |
Location | Â |
   Cavernous sinus | 8 |
   Cribriform plate | 1 |
   CP angle/IAC | 2 |
   Ethmoid | 1 |
   Foramen magnum | 1 |
   Foramen ovale | 1 |
   Infratemporal fossa | 3 |
   Jugular foramen | 1 |
   Middle fossa | 2 |
   Parasellar | 1 |
   Orbit | 7 |
   Petroclival | 3 |
Goal of CyberKnife treatment | Â |
   Primary treatment for local disease (%) | 18 (58) |
   Secondary treatment (%) | 13 (42) |
Previous treatment | Â |
   Previous craniofacial surgery | 6 |
   Previous external beam radiation | 4 |
   Previous stereotactic radiosurgery | 1 |
Previous biopsy only (%) | 4 |