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.
Pre-invasive lobular carcinoma is abnormal breast tissue growth which is usually not dangerous but increases the risk of dangerous types of breast cancer.
Relapsing polychondritis is a rare inflammatory disease of cartilage in the ear, nose or windpipe. It causes pain, swelling and destruction of cartilage.