“…CT and MRI 16,17,23 are the most helpful tools for diagnosis and allow determination of the cyst limits and its relation to the parotid. The diagnoses of synovial cysts and ganglion are often used interchangeably, but these are two different lesions 3, 18 . Synovial cysts contain synovial uid, are lined by an endothelium containing synoviocytes, and may or may not communicate with the joint cavity.…”