Journal
AMERICAN JOURNAL OF FORENSIC MEDICINE AND PATHOLOGY
Volume 43, Issue 1, Pages 73-75Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/PAF.0000000000000684
Keywords
postmortem computed tomography; PMCT; atrium; myocarditis; neutrophil
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This article reports a fatal case of isolated neutrophilic atrial myocarditis affecting only the left atrium, leading to sudden death. The case highlights a potential blind spot for both routine postmortem imaging and examination.
Myocarditis can focally or diffusely involve the myocardium and is associated with arrhythmia, cardiac failure, and sudden death. The majority of cases of myocarditis are lymphocytic in etiology, and neutrophilic myocarditis is relatively uncommon. Although reported in lymphocytic myocarditis, isolated/focal neutrophilic myocarditis of the atrium causing death is not reported in the postmortem literature, and its postmortem computed tomography correlation is not documented. We report a fatal case of isolated neutrophilic atrial myocarditis affecting only the left atrium in a 33-year-old woman presenting as a sudden unexpected death. Microscopy of the left atrium, a not commonly sampled area of the heart, showed florid neutrophilic myocarditis with the remaining right atrium, conduction system, and both ventricles uninvolved. Similar to previously reported fatal isolated atrial lymphocytic myocarditis, postmortem computed tomography was unable to detect any atrial abnormalities. This case highlights a potential blind spot for both routine postmortem imaging and examination.
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