Herniated intervertebral disk

Herniation of ucleus pulposus due to damaged annulus fibrosus compressing the nerves or spinal cord causing pain and spinal cord dysfunction.

Reactive arthritis (ReA)

Inflammatory arthritis that manifests several days to weeks after a gastrointestinal/genitourinary infection.

Rhabdomyolysis (RML)

Rhabdomyolysis is the destruction of skeletal muscle with resultant release of intracellular enzymatic content into the bloodstream that leads to systemic complications

Sinding-Larsen-Johansson (SLJ) syndrome

Syndrome characterized by periostitis of inferior pole of patella.