Project cost management is primarily concerned with the cost of the resources needed to complete project activities. However, project cost management should also consider the effect of project decisions on the cost of using the project product. For example, limiting the number of design reviews may reduce the cost of the pro-
Arachnoid cysts are fluid-filled sacs that occur on the arachnoid membrane that covers the brain (intracranial) and the spinal cord (spinal). There are three membranes covering these parts of the central nervous system: the dura mater, arachnoid, and pia mater.
Brain cysts located in the brain are not truly âbrain tumorsâ because they do not arise from the brain tissue itself. Although they tend to be (benign noncancerous), they are sometimes found in parts of the brain that control vital functions. There are four main types of cysts found in the brain: 1  Arachnoid Cyst (also called Leptomeningeal Cyst): An enlarged, fluid-filled area of the subarachnoid space that occurs in both adults and children.