[Clinical Picture] Coronary polyarteritis nodosa

A 36-year-old woman had dyspnoea on exertion with intermittent chest tightness that occurred during and outside of exertion. She did not disclose any systemic diseases and there was no family history of cardiovascular or pulmonary conditions. An electrocardiogram done during a treadmill test showed ST segment depression without atypical serum concentrations of creatinine kinase or troponin I. A coronary CT angiography showed a so-called rosary-bead appearance and luminal irregularity with ectatic changes over the coronary arteries (figure A–C).