Source:http://linkedlifedata.com/resource/umls/id/C0010709
MSH: Any fluid-filled closed cavity or sac that is lined by an EPITHELIUM. Cysts can be of normal, abnormal, non-neoplastic, or neoplastic tissues.,NCI: A sac or capsule in the body. It may be filled with fluid or other material.,NCI: A sac-like closed membranous structure that may be empty or contain fluid or amorphous material.