Connective tissue disease as Etiologies of Classic FUO

Giant cell arteritis Polymyalgia rheumatica headache, scalp pain, jaw claudication, visual disturbances, myalgias, arthralgias, ↑ ESR

Adult-onset Still’s: evanescent truncal rash, LAN, pharyngitis, ↑↑ ferritin

PAN, ANCA ⊕, other vascul.; SLE, RA, psoriatic or reactive arthritis