IgG4-Related Coronary Periarteritis with Pseudoaneurysm and Myocardial Ischemia

IgG4-related disease can involve coronary arteries as periarteritis, leading to pseudoaneurysm formation and myocardial ischemia—an uncommon but important mimic of atherosclerosis on imaging.

• Case report (or small case series) published in Radiology; exact number of patients not reported in snippet.
• Findings highlight IgG4-related disease as a differential for coronary artery abnormalities, especially when atypical for atherosclerosis.
• Limitation: rare entity, retrospective single-institution observation, no diagnostic performance metrics available.

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