A syndrome resulting from the compression of the blood vessels or nerves in the space between the clavicle and first rib (thoracic outlet). It is caused by car accident injuries or repetitive job or sport-related injuries. Signs and symptoms include pain in the shoulders and neck, numbness in the fingers, and weakening grip. The disease is MONDO_0005979 (thoracic outlet syndrome). Also known as: TOS, TOS - thoracic outlet syndrome, thoracic outlet compression syndrome.