What is subdural hygromas?

Subdural hygromas occur when an accumulation of cerebrospinal fluid (CSF) collects in the space between the dura mater (the tough, outermost layer of the meninges) and the arachnoid mater (the thin, web-like membrane that covers the brain). They may develop gradually over time or quickly after a head injury.

Symptoms of subdural hygromas can include headaches, nausea, vomiting, seizures, confusion, and difficulty with movement or coordination. Treatment may vary depending on the cause and severity of the hygroma, but can include medication, drainage of the fluid, or surgery.

Risk factors for developing subdural hygromas include older age, alcohol abuse, and a history of previous head injuries. They are also more common in individuals with certain medical conditions, such as dementia, brain tumors, or bleeding disorders.