Osteoarthritis progresses further with obliteration of the joint space. The appearance of subchondral cysts (cysts in the bone underneath the cartilage) indicates the erosive phase of disease progression in osteoarthritis.
Keratosis pilaris is a common and harmless condition where the skin becomes rough and bumpy, as if covered in permanent goose pimples.
Keratosis pilaris runs in families and is inherited from your parents. If one parent has the condition, there's a one in two chance that any children they have will also inherit it. Keratosis pilaris occurs when too much keratin builds up in the skin's hair follicles. Keratin is a protein found in the tough outer layer of skin, which causes the surface of the skin to thicken (hence the name keratosis). The excess keratin blocks the hair follicles with plugs of hard, rough skin.