Most common chronic ahritis seen in children ?

Ans. is 'a' i.e., JRA Amongst the given option only JRA causes chronic ahritis in children. Ahritis o Ahritis in children is diagnosed if - A)There is swelling or effusion in a joint B) There are any 2 of the following features - i) Decreased ROM iii) Tenderness ii) Pain iv) Increased local temprature Differential diagnosis of ahritis Acute ahritis (usually Acute rheumatic fever Transient (`toxic') synovitis Ahritis associated with Kawasaki disease Henoch-Scholein purpura 5. Septic ahritis (Staphylococcus aureus, Hemophilus influenzae, Neisseria meningitidis) Trauma Subacute ahritis (2-6 weeks) I. Reactive ahritis secondary to extra-aicular infection Ahritis associated with SLE, dermatomyositis, polyaeritis nodosa Bone pains (? ahritis) associated with leukemia / neuroblastoma Ahritis associated with lyme disease / brucellosis Sickle cell disease, bleeding diathesis, hemahrosis Primary immunodeficiencies (e.g., Bruton's hypogammaglobulinemia) II. Chronic ahritis (> 6 weeks) Juvenile rheumatoid ahritis 4. Legg-Calve-Pehes disease Ankylosing ahritis 5. Psoriasis Tubercular ahritis 6. Inflammatory bowel disease