Table 1 The clinical characteristics of foramen magnum meningioma (FMM)
From: Classification and microsurgical treatment of foramen magnum meningioma
Content | Cases | Percentage (%) | ||
|---|---|---|---|---|
Gale | Male | 25 | 32.89 | |
Female | 51 | 67.11 | ||
The type of position of FMM | Type ABS (around the brain stem) | Ahead of the brainstem (A) | 47 | 61.84 |
Back of the brainstem (B) | 8 | 10.53 | ||
Side of the brainstem (S) | 21 | 27.63 | ||
Type SIM (around the vertebral artery) | Superior to the vertebral artery (S) | 19 | 25.00 | |
Inferior to the vertebral artery (I) | 39 | 51.32 | ||
Mixed of the vertebral artery (M) | 18 | 23.68 | ||
Manifestations | Neck and occipital pain | 28 | 36.84 | |
Decreased limb muscle strength and hypoesthesia | 22 | 28.95 | ||
Dysphagia and drinking water choking cough | 11 | 14.47 | ||
Increased intracranial pressure | 7 | 9.21 | ||
Ataxia | 5 | 6.58 | ||
Dyspnea | 3 | 3.95 | ||
Operative approaches | Far lateral approach | Ahead of the brainstem (A) | 47 | 77.63 |
Side of the brainstem (S) | 12 | |||
Suboccipital midline approach | Side of the brainstem (S) | 9 | 22.37 | |
Back of the brainstem (B) | 8 | |||
Postoperative complications | Hoarseness, drinking water choking cough, dysphagia | 7 | 9.21 | |
Hypodermic fluidification | 5 | 6.58 | ||
Pneumonia | 4 | 5.26 | ||
Weak sputum and cough reflex | 3 | 3.95 | ||
Neck and occipital numbness | 3 | 3.95 | ||
Incision infection | 3 | 3.95 | ||
Great occipital neuralgia | 2 | 2.63 | ||
Dyspnea | 2 | 2.63 | ||
Cerebrospinal fluid leakage | 2 | 2.63 | ||
Intracranial infection | 2 | 2.63 | ||
Hydrocephalus | 2 | 2.63 | ||
Contralateral limb strength decreased | 1 | 1.32 | ||