<unk><unk><unk>  disease has to be differentiated from other conditions with similar presentation of arthritis and rash like systemic lupus erythematosus, rheumatoid arthritis, rhupus, undifferentiated<unk><unk>  disease, systemic sclerosis, Sjogren's syndrome, vasculitis, Behcet's syndrome, Kikuchi's disease, serum sickness, psoriatic arthritis and human parvovirus B19 infection.
Differentiating Mixed connective tissue disease from other diseases
Differentiating cryoglobulinemia from other diseases
Differentiating Scleroderma from other diseases
Sarcoidosis differential diagnosis
Differentiating lupus nephritis from other diseases
Differentiating croup from other diseases
Goodpasture syndrome differential diagnosis
Drug allergy differential diagnosis