In Cases 1–6, the histopathologic type of myocarditis was lymphohistiocytic myocarditis, showing 2–10 CD3-positive infiltrating lymphocytes/mm2 and 0–10 CD68-positive infiltrating histiocytes/mm2 (Figure 2, Figure 3 and Figure 4, Table 2). The gene discussed is CD68; the disease is myocarditis.