It is a common cyst that is present at birth or congenital. They are non-cancerous fluid-filled sac that develops in the brain or spinal cord. They do not show any symptoms usually. But, sometimes headaches and seizures are present. Treatment is not required most of the time. Draining or removal of the cyst is done whenever necessary.
Arachnoid Cyst - Causes, Symptoms, Diagnosis, and Treatment
Arachnoid cysts are noncancerous fluid-filled sacs that have developed in the brain or spinal cord. Management depends on the location of cysts and symptoms.