I had just went and had my complete ultrasoud done on March 28 2012 and they told me to that my daughter had a cyst on her brain and have to go for level two ultrasound tomorrow i am 19 weeks now and hope and pray to that her cyst will disolve and disappear by tomorrow or by the time she is born,but as i am reading all these post i can see that these are so common and most of the time disappear.