Intervention; interposition; the act of a third person who interferes between two contending parties with a view to reconcile them or persuade them to adjust or settle their dispute.
Subchondral cyst formation is characteristic of osteoarthritis and can be routinely found on x-rays. A subchondral cyst is a fluid-filled sac that extrudes from the joint, consisting of thickened joint material (mostly hyaluronic acid, a substance found in the normal joint fluid that serves to lubricate the joint). Subchondral bone is the layer of bone just below the cartilage.
1 Labial cyst: any fluid-filled cyst in the labia. 2  Pilonidal cyst: a cyst that contains hair and skin debris near or on the cleft of the buttocks; also known as jeep driver's disease. 3  Nabothian cyst: a mucous-filled cyst on the surface of the cervix.  Pineal cyst: a fluid-filled body in the pineal gland (of the brain)