We report the case of a 48-year-old male with a 2-month history of migratory polyarthralgia, and myalgia associated with fever and weight loss; one episode of bilateral testicular pain; and unilateral pulsatile headache with thickening of the left temporal artery suggestive of temporal arteritis. The patient evolved with spontaneous left perirenal hematoma, splenic infarcts, and oliguric acute renal failure. Treatment included prednisone and cyclophosphamide. The left temporal artery and the quadriceps muscle were biopsied. Clinical, laboratorial, and radiological findings, as well as the intercurrences, led to the diagnosis of polyarteritis nodosa.
polyarteritis nodosa; systemic necrotizing vasculitis; temporal arteritis; perirenal hemorrhage
