A brain cyst is a sphere filled with fluid, blood, minerals or tissues. The brain is the key part of the human body that controls all of its functions. A cyst in the brain can be very dangerous. Some cysts in the brain do not cause any symptoms as they are in parts of the brain that do not control any key function. Since your daughter has been diagnosed with a cyst, it means that she needs further treatment depending on the type of cyst, which can be many. You can know all about the types of cysts and associated treatments at the link below:
www.abta.org
www.abta.org