Question

all of the following features are characteristics of osteoarthritis, except: the absence of a pannus formation pain associated with weight bearing bones the presence of inflammatory cells degenerative changes of surface cartilage heberdens nodes

Explanation:

Osteoarthritis is a degenerative joint disease. It involves degenerative changes of surface cartilage, pain in weight - bearing bones, may present with Heberden's nodes (in fingers), and is not characterized by a significant presence of inflammatory cells as in rheumatoid arthritis where pannus formation occurs. Pannus is absent in osteoarthritis.

Answer:

C. the presence of inflammatory cells