Metastatic disease of the spinal cord refers to cancer that spread to the spine, usually from the lungs, breast, prostate or lymphatic or gastro systems.
Relapsing polychondritis is a rare inflammatory disease of cartilage in the ear, nose or windpipe. It causes pain, swelling and destruction of cartilage.
Polymyositis is an inflammatory muscle disease which causes fever, weight loss and muscle wasting in adults. It is thought to be an autoimmune condition.