This is a picture of my husband's brain. I realize that the cyst is not in the third vertricle, but rather what looks like the lateral ventricl and perhaps the opening of the foramen monro. He doesn't currently seem to have hydrocephalus, however he does have many of the same symptoms of colloid cyst sufferers, and his neurologist thinks he has MS. His is hopefully going to see a top neuro-surgeon in Arizona where we live, and has an apt at the Mayo Clinic next month, but the waiting sucks. His father dropped dead at 30 and no autopsy was ever done, and today is the one year anniversary of his brother's death who dropped dead suddenly at 40 with no apparent cause. Does anyone have any idea what kind of cyst this could be??