Medicine

A 55-year-old woman presents to the clinic for evaluation of several weeks of fever, abdominal pain, weight loss, and lack of energy. Three days prior to the assessment, she developed a left foot drop. Her blood pressure is 160/90 mm Hg, pulse 80/min, and the physical examination confirms left peroneal nerve damage and a bilateral sensory neuropathy in both legs. There are no skin rashes. Laboratory evaluation reveals an ESR of 105 mm/h, WBC of 14,000/mL, and negative serologic tests for antineutrophil cytoplasmic antibody (ANCA) and ANA. The eosinophil count is normal, and urinalysis is negative for casts, protein, and red cells. A clinical diagnosis of polyarteritis nodosa is made. Which of the following is the most likely mechanism for renal injury in this condition?