- ankylosis [DOID:227]
An arthropathy where there is a stiffness of a joint, the result of injury or disease. The rigidity may be complete or partial and may be due to inflammation of the tendinous or muscular structures outside the joint or of the tissues of the joint itself.
- pain disorder [DOID:0060164]
A somatoform disorder that involves chronic pain in one or more areas, and is thought to be caused by psychological stress.
- monogenic disease [DOID:0050177]
A genetic disease that is the result of one or more abnormal alleles and may be dominant, semi-dominant, or recessive.