Tse Rexson, Garland Jack, Kesha Kilak, Triggs Yvonne, Modahl Lucy, Milne David, Yap Zhi, Stables Simon
Am J Forensic Med Pathol. 2018 Jun;39(2):123-125. doi: 10.1097/PAF.0000000000000364.
Acute myocarditis is a potentially fatal cardiac pathology that is thought to cause sudden death through arrhythmia and cardiac failure. Of the different subtypes, lymphocytic myocarditis is the most common form. The pathophysiology of myocarditis can be generally diffuse or focally involve the ventricles, but less frequently affects the atria. Although the clinical literature reports isolated atrial myocarditis as a cause of atrial fibrillation and enlargement, there is scant postmortem literature on the findings of this pathology. We report a fatal case of isolated lymphocytic atrial myocarditis affecting only the left atrium in a 56-year-old man, where microscopy of the left atrium confirmed a florid lymphocytic myocarditis. Retrospective postmortem computed tomography scan review did not show any abnormalities on the left atrial wall.
急性心肌炎是一种潜在致命的心脏疾病，被认为可通过心律失常和心力衰竭导致猝死。在不同的亚型中，淋巴细胞性心肌炎是最常见的形式。心肌炎的病理生理学通常可呈弥漫性或局灶性累及心室，但较少累及心房。尽管临床文献报道孤立性心房心肌炎可导致心房颤动和扩大，但关于这种病理表现的尸检文献却很少。我们报告一例56岁男性的致命性孤立性淋巴细胞性心房心肌炎病例，仅累及左心房，左心房显微镜检查证实为活动性淋巴细胞性心肌炎。回顾性尸检计算机断层扫描复查未显示左心房壁有任何异常。
