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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: World Neurosurg. 2018 Apr 4;114:e1266–e1274. doi: 10.1016/j.wneu.2018.03.194

Table 2.

Clinical Syndromes and Tumor Characteristics by Tumor Location

Anterior Middle Posterior Overlapping
(AM/MP/AMP)
p-value
Patient Demographics
  Total (n, %) 11 (22) 7 (14) 27 (53) 6 (12)
  Female (n, %) 10 (91) 4 (57) 23 (85) 4 (67) 0.2325
  Median Age (yrs, range) 63 (48–74) 51 (40–77) 62 (37–84) 69 (46–90) 0.5326*
Tumor Demographics
  Largest Tumor Diameter (cm, range) 1.8 (0.8–3.2) 3 (2.6–3.5) 3.8 (1.1–5.9) 4.0 (2.8–6.2) 0.0003*
  Tumor Size ≥3 cm (n, %) 1 (9) 4 (57) 17 (63) 5 (83) 0.0079
  Tumor Size < 3 cm (n, %) 10 (91) 3 (43) 10 (37) 1 (17)
  WHO Grade I (n, %) 11 (100) 7 (100) 26 (96) 6 (100) 0.8238
  WHO Grade II (n, %) 0 (0) 0 (0) 1 (4) 0 (0)
Clinical Symptoms (n, %)
  Hydrocephalus 0 (0) 0 (0) 10 (37) 3 (50) 0.0190
  Headache 0 (0) 2 (29) 17 (63) 3 (50) 0.0039
  Ataxia 0 (0) 2 (29) 10 (37) 2 (33) 0.1376
  Vertigo 1 (9) 1 (14) 15 (55) 2 (33) 0.0265
Cranial Neuropathy
  Any 10 (91) 6 (86) 10 (37) 5 (83) 0.0034
  Extraocular (III, IV, VI) 0 (0) 0 (0) 1 (4) 1 (17) 0.3442
  Trigeminal (V) 10 (91) 3 (43) 2 (7) 0 (0) < 0.0001
  Facial (VII) 0 (0) 1 (14) 0 (0) 0 (0) 0.0932
  Auditory (VIII) 0 (0) 4 (57) 9 (33) 5 (83) 0.0035

p-value for Pearson’s Chi-Square unless noted

*

p-value for Wilcoxon test