Cyst
Appearance
{{About|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, a cyst could go away on its own or may have to be removed through surgery.
Benign vs malignant
Most cysts in the body are benign (dysfunctional) tumors, the result of plugged ducts or other natural body outlets for secretions. However sometimes these masses are potentially malignant:
Related structures
A pseudocyst is collection without a distinct membrane.
A syrinx in the spinal cord or brainstem is sometimes inaccurately referred to as a cyst.
References
External links
- "Cyst Symptoms and Causes" by Melissa Conrad Stöppler, MD and William C. Shiel, Jr., MD, FACP, FACR.