Colloid cysts are benign slow-growing tumors that frequently arise from the roof of the third ventricle inside the brain. Colloid cyst consists of gelatinous (colloid-like) material encapsulated with connective tissue cells. These tumors can be asymptomatic or can cause a variety of symptoms with headaches and confusion /memory loss being the most common.

Colloid cyst can cause impaired cerebrospinal fluid flow which can lead to hydrocephalus formation and increased intracranial pressure.

The cause of colloid cysts is unknown. The most common symptom is headaches, but sometimes other symptoms like impaired vision, memory disturbances, and vertigo can occur.

In addition to physical examination, physician can ask to provide CT or MRI tests in order to diagnose colloid cyst.

Symptomatic colloid cyst should be removed surgically. Neurosurgeons use minimally invasive surgery techniques for the removal of colloid cysts.

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