Final answer:
Bouchard's nodules are associated with osteoarthritis (Degenerative joint disease) and are found on the middle joints of the fingers.
Step-by-step explanation:
Bouchard's nodes are osteophytes or bony enlargements typically associated with osteoarthritis (also known as degenerative joint disease). They are found on the proximal interphalangeal joints (the middle joints) of the fingers and may or may not be painful. These nodes indicate the presence of changes in the bones of the joints due to degenerative processes. Bouchard's nodes are different from Heberden's nodes, which occur on the distal interphalangeal joints (the closest to the fingertip). These bony enlargements are characteristic signs of degenerative changes in the joint and are not usually seen in autoimmune conditions such as rheumatoid arthritis, nor are they typically associated with conditions like psoriatic arthritis or infectious conditions such as septic arthritis.