<prompt> Distal interphalange of joint is commonly involved in:Gouty arthritisPsoriatic arthritisReactive arthritisRheumatoid arthritis  <response>: Psoriatic arthritis: Ref: 247 - M, 64-A The important distinguishing features of psoriatic arthritis are:1. Asymmetrical joint distribution2. Involvement distal finger joints3. The presence of sacroilitis or spondylitis4. The absence of rheumatoid nodule Osteoarthritis: - Knobbly appearance of distal inter phalagcal joint Herberdens nodes and less often the proximal interphalangeal joints Bouchards nodes SLE: - The joint involvement is not symmetrical nor are ankylosis and erosions common Rheumatoid arthritis: - Bilateral symmetrical polyarthritis involving the proximal joints of the hands or feet the joints affected most commonly are the metacarpophalangeal joint s particularly that of the index fingers. 