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 appears when extra keratin accumulates in the hair follicles. This is usually in childhood, and most obvious during adolescence, often clearly in adulthood. For reasons not fully understood the condition seems to be better in the summer than in the winter.