29th January 2024

A 58-year-old woman presented to the emergency department with an 8-week history of shortness of breath and abdominal pain.

A 58-year-old woman presented to the emergency department with an 8-week history of shortness of breath and abdominal pain. She also complained of significant pain in both wrists and a rash over the legs. CRP 56mg/L, WBC 9.2×10⁹/L, lactate 4.1mmol/L. She was diagnosed with polyarteritis nodosa. What is the likely cause of her abdominal pain?