A cyst is a closed sac having a distinct membrane and division on the nearby tissue. It may contain air, fluids, or semi-solid material. A collection of pus is called an abscess, not a cyst. Once formed, the cyst could go away by itself or will have to be removed using surgery.
A syrinx in the spinal cord or brainstem is sometimes inaccurately referred to as a cyst.
Radicular cyst associated with a deciduous molar: A case report with unusual clinical presentation.(Case Report)
Jul 01, 2006; Byline: Y. Ramakrishna, D. Verma This article presents case report of a patient with radicular cyst associated with a primary...