system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 9-year-old boy from Eritrea is admitted to the hospital for lethargy and increased work of breathing. He has had recurrent episodes of fever, shortness of breath, and fatigue in the past 3 years. His pulse is 132/min and blood pressure is 90/66 mm Hg. Pulse oximetry on room air shows an oxygen saturation of 82%. Auscultation of the chest shows coarse crackles in both lungs and a diastolic murmur at the cardiac apex. Despite appropriate lifesaving measures, he dies. A photomicrograph of a section of myocardium obtained at autopsy is shown. Which of the following is the most likely underlying cause of this patient's cardiac disease?
assistant
Type II hypersensitivity reaction