Average Diagnostic Medical Sonographer Yearly Salary in Michigan. Diagnostic Medical Sonographers earn a median salary of $59,710 per year. Salaries typically start from $44,870 and go up to $76,190. Learn more about the Diagnostic Medical Sonographer job market for salaries of real jobs in your area.
Synovial cysts are benign, fluid-filled sacs that develop in the facet joints of the lumbar spine as a result of degeneration. If large enough, these sacs can cause spinal stenosis.
The exact cause of lumbar synovial cysts remains unclear; however, it is widely accepted that their incidence is largely related to advanced degeneration of the facet joint. This is supported by the proximity of the cysts to the de generated joints and the fact that these cysts tend to occur in older individuals. As with other manifestations of de generative disease, it is likely that segmental instability and trauma may also play a role in the pathogenesis of the disease.