Histologically , diffuse distribution of eosinopholic cardiocytes with pyknosis was noted . immunohistochemical staining for myoglobin discovered wide and diffuse loss of myoglobin throughout the ventricular myocardium . ultrastructurally , the myocardial cell with myoglobin loss were characterized by the presence of swollen mitochondria and packed cellular constituents 組織學檢查注意到彌散性分布伴有核碎裂的嗜酸性變性,肌紅蛋白組化染色發現整個心室肌廣泛性脫失,超微結構研究表明脫失肌紅蛋白的心肌細胞存在線粒體腫脹和細胞內成分的堆積。