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1. Intracranial hemorrhage
This is the most severe clinical manifestation and may present with sudden severe headache, nausea and vomiting, impaired consciousness, or hemiparesis, requiring emergency management.
2. Epileptic seizures
One of the common initial presentations, more frequently seen in patients with cortical lesions; seizures may be focal or secondarily generalized.
3. Chronic headache
Some patients experience long-standing, recurrent headaches, which may be related to local hemodynamic abnormalities or elevated venous pressure.
4. Focal neurological deficits
These include limb weakness or numbness, visual or speech disturbances, and gait instability, and are often associated with the “cerebral steal” phenomenon or localized ischemia.
5. Pulsatile tinnitus or intracranial bruit
In high-flow or large-volume lesions, a small proportion of patients may perceive abnormal sounds synchronous with the heartbeat.
6. Distinct manifestations in pediatric patients
Giant brain arteriovenous malformations in children may affect brain development, leading to developmental delay or other neurological abnormalities.
Jinshazhou Hospital of Guangzhou University of Chinese Medicine emphasizes that symptoms of brain arteriovenous malformation can be unpredictable, and some patients may have no clear warning signs before their first hemorrhage. When seizures, sudden headache, or changes in neurological function occur, prompt specialist imaging evaluation is recommended to enable early diagnosis and risk control.
1. Intracranial hemorrhage
This is the most severe clinical manifestation and may present with sudden severe headache, nausea and vomiting, impaired consciousness, or hemiparesis, requiring emergency management.
2. Epileptic seizures
One of the common initial presentations, more frequently seen in patients with cortical lesions; seizures may be focal or secondarily generalized.
3. Chronic headache
Some patients experience long-standing, recurrent headaches, which may be related to local hemodynamic abnormalities or elevated venous pressure.
4. Focal neurological deficits
These include limb weakness or numbness, visual or speech disturbances, and gait instability, and are often associated with the “cerebral steal” phenomenon or localized ischemia.
5. Pulsatile tinnitus or intracranial bruit
In high-flow or large-volume lesions, a small proportion of patients may perceive abnormal sounds synchronous with the heartbeat.
6. Distinct manifestations in pediatric patients
Giant brain arteriovenous malformations in children may affect brain development, leading to developmental delay or other neurological abnormalities.
Jinshazhou Hospital of Guangzhou University of Chinese Medicine emphasizes that symptoms of brain arteriovenous malformation can be unpredictable, and some patients may have no clear warning signs before their first hemorrhage. When seizures, sudden headache, or changes in neurological function occur, prompt specialist imaging evaluation is recommended to enable early diagnosis and risk control.