Hi, They are typically small and asymptomatic and are discovered incidentally in older patients, usually in the trigone of the lateral ventricle. Symptomatic CPCs (usually exceptionally large, 2-8 cm) are rare. You are in the rare group and this might be causing the dizziness. Surgery is the best way to treat such a cyst. If ignored, it can cause lot of discomfort due to size enlargement and there will be persistent dizziness with the risk of development of increased intracranial pressure requiring emergency surgery. Surgery done is often minimally invasive with endoscopic asiistance.