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Related to polyarteritis nodosa: polyarthritis, Wegener's granulomatosis, vasculitis
polyarteritis nodosa[′päl·ē‚ärd·ə′rīd·əs nō′dō·sə]
A systemic disease characterized by widespread inflammation of small and medium-sized arteries in which some of the foci are nodular. Also known as disseminated necrotizing periarteritis; periarteritis nodosa.