Characteristics | Idiopathic HP | Secondary HP | |
---|---|---|---|
(N = 23) | (N = 11) | ||
n (%) | n (%) | ||
Linear/smooth | 12 (52) | 6 (55) | 1.00 |
Nodular/undulated | 11 (48) | 5 (45) | 1.00 |
Supratentorial lesions | 22 (96) | 11 (100) | 1.00 |
Cavernous sinus | 13 (57) | 6 (55) | 1.00 |
Orbital apex | 4 (17) | 4 (36) | 0.388 |
Supraorbital foramen | 1 (4) | 0 | 1.00 |
Sphenoid wing | 2 (9) | 2 (18) | 0.58 |
Cerebral convexity | 8 (35) | 7 (64) | 0.151 |
Tentorium cerebelli | 9 (39) | 5 (46) | 1.00 |
Falx cerebri | 4 (17) | 2 (18) | 1.00 |
Anterior and middle cranial fossae | 3 (13) | 6 (55) | |
Infratentorial lesions | 6 (26) | 0 | 0.145 |
Posterior fossa | 6 (26) | 0 | 0.145 |
Foramen magnum | 0 | 0 | |
Diffuse | 6 (26) | 0 | 0.145 |
Spinal canal | 1 (4) | 0 | 1.00 |
Supratentorial | Cavernous sinus |
Orbital apex | |
Superior orbital fissure | |
Sphenoid wing | |
Cerebral convexity | |
Tentorium cerebelli | |
Falx cerebri | |
Anterior and middle fossae | |
Infratentorial | Posterior fossa |
Foramen magnum | |
Diffuse | Throughout the calvarium |
Spinal canal | Spinal canal |
IHP | Secondary HP | ||
---|---|---|---|
n (%) | n (%) | ||
23 (68) | 11 (32) | ||
46 (20–68) | 55 (8–79) | 0.235 | |
Male | 8 (35) | 4 (36) | 1.00 |
Female | 15 (65) | 7 (64) | |
Headache | 15 (65) | 2(18) | |
1.00 | |||
Duration (mean, range) (months) | 6.6 (0.1–120) | 0.5 (1.5–4.0) | |
Neurological deficits | 20 (87) | 9 (82) | |
- CN I | 0 | 1 (9) | |
- CN II | 9 (39) | 2 (18) | |
- CN III | 8 (35) | 3 (27) | |
- CN IV | 5 (22) | 1 (9) | |
- CN V | 6 (26) | 1 (9) | |
- CN VI | 6 (26) | 0 | |
- CN VII | 1 (4) | 3 (27) | |
- Others (both arms weakness and left hemiparesis) | 1 (4) | 2 (18) |
Signal intensity | IHP | Secondary HP | |
---|---|---|---|
(N = 23) | (N = 11) | ||
n (%) | n (%) | ||
15 (65) | 9 (82) | 0.784 | |
Iso-intensity | 7 (30) | 2 (18) | |
Hypo-intensity and dark intensity | 1 (4) | 0 | |
Hyperintensity | |||
5 (22) | 3 (27) | 0.148 | |
Iso-intensity | 12 (52) | 3 (27) | |
Hypo-intensity and dark intensity | 3 (13) | 5 (46) | |
Hyperintensity | 3 (13) | 0 | |
T2-rim pattern | |||
12 | 10 | 0.455 | |
Restricted diffusion | 0 | 1 (10) | |
No restricted diffusion | 12 (100) | 9 (90) | |
16 (70) | 5 (46) | 0.344 | |
Homogeneous | 5 (22) | 5 (46) | |
Heterogeneous | 2 (9) | 1 (9) | |
Rim | |||
12 | 3 | ||
Homogeneous enhancement | 9 (75) | 0 | |
Heterogeneous enhancement | 2 (17) | 3 (100) | |
Rim enhancement | 1 (8) | 0 |