Occasionally, pineal cysts may cause headaches, hydrocephalus, disturbances in vision (gaze palsy), Parinaud syndrome, and vertigo, in which case they are called symptomatic pineal cysts.[1] Although rare, people with symptomatic pineal cysts may have other symptoms such as difficulty moving (ataxia); mental and emotional disturbances; seizures; sleep (circadian rhythm) troubles; hormonal imbalanc