Table 2 Skull Base Tumor Characteristics
Control Group I (simple) (n = 36) | Control Group II (metastases) (n = 43) | Study Group (complex) (n = 46) | |
|---|---|---|---|
Volume (cc) | |||
Min | 0.19 | 0.12 | 0.62 |
Max | 206.3 | 66 | 98.3 |
Mean | 45.61 | 4.87 | 12.6 |
Median | 8.83 | 1.43 | 7.27 |
Histology | |||
Carcinomas | 13 | 33 | 4 |
Chordoma | 1 | 0 | 1 |
Gliomas | 0 | 0 | 1 |
Malignant Gliomas | 2 | 0 | 0 |
Melanoma | 0 | 10 | 2 |
Meningioma | 5 | 0 | 21 |
Pituitary Adenoma | 3 | 0 | 7 |
Sarcomas | 2 | 0 | 2 |
Schwannoma (not VIII) | 0 | 0 | 4 |
Vestibular Schwannoma | 10 | 0 | 4 |
Location | |||
Cavernous Sinus | 2 | 0 | 15 |
CP Angle/IAC | 12 | 0 | 6 |
Foramen Magnum | 0 | 0 | 4 |
Nasopharynx | 4 | 0 | 0 |
Orbital Apex/Parasellar | 3 | 0 | 5 |
Paranasal Sinus | 4 | 0 | 0 |
Petroclival | 3 | 0 | 7 |
Sellar | 3 | 0 | 7 |
Cerebral Hemishpere | 1 | 34 | 0 |
Thalamus/Hypothalamus | 0 | 2 | 1 |
Cerebellum | 0 | 7 | 0 |
Other* | 4 | 0 | 1 |