Table 2:
Tumor Characteristics/Outcomes
| n (%) | |
|---|---|
| Management (n = 26) | |
| Surgical Resection | 11 (64.7) |
| Stereotactic Radiosurgery | 3 (17.6) |
| Both Surgery and Radiation (SRS or EBRT) | 3 (17.6) |
| Observation | 9 (34.6) |
| WHO Grade (n = 14 resections) | |
| I | 11 (78.6) |
| II | 3 (21.4) |
| Histological Subtype (n = 13 avail. for review) | |
| Transitional | 8 (61.5) |
| Fibrous | 3 (23.1) |
| Meningothelial | 1 (7.7) |
| Meningothelial with focal rhabdoid features | 1 (7.7) |
| Progesterone Receptor Positive (n = 11 avail. for IHC) | |
| WHO Grade 1 (n=10) | 9 (90.0) |
| WHO Grade 2 (n = l) | 1 (100.0) |
| Estrogen Receptor Positive (n = 11 avail. for IHC) | |
| WHO Grade l (n = 10) | 1 (10) |
| WHO Grade 2 (n = l) | 0 (0) |
| Location (n = 26) | |
| Skull Base | 6 (23.1) |
| Anterior Fossa | 1 (3.8) |
| Middle Fossa | 2 (7.7) |
| Posterior Fossa | 3 (11.5) |
| Convexity | 7 (26.9) |
| Falx/Parasagittal | 8 (30.8) |
| Multiple | 5 (19.2) |
| Tumor Volume at Surgery (cm3) | |
| Mean (cm3, range) | 7.0 (3.1–28.7) |
| Largest Tumor Dimension at Treatment (cm) | |
| Mean (cm, range) | 2.2 (1.8–3.8) |
| Extent of Resection (n = 14) | |
| Gross Total | 10 (71.4) |
| Subtotal | 3 (21.4) |
| Both (for different tumors) | 1 (7.1) |
| Recurrence (n = 14) | 1 (7.1) |
Abbreviations: Avail, available; IHC, immunohistochemistry