Pathology

Question 1

Describe OA x-ray signs

Answer 1

L- loss of joint space
O - osteophytes
S - subchondral cysts (fluid filled cyst in bone of a joint)
S - subchondral sclerosis (thickening of bone)

Question 2

Describe RA signs on an xray

Answer 2

L - loss of joint space
E - erosions
S - soft tissue swelling
S - soft bones (decrease in density)