Results The clinical manifestations were variable, but most patients had symptoms and signs of intracranial hypertension (91%)such as headache and papilledema.

• 近半数病人(49%25)伴有局灶神经功能异常如肢体无力、癫痫发作、视力下降等，51%25的病人仅表现为单纯颅内压增高。