PTPRC and ischemia: Although more than 14 leukocytes per mm2 were present in our cases (confirmed by IHC staining for LCA), due to predominance of macrophages (CD68 positive) in all 3 cases, a scant number of CD3 positive T-lymphocytes, and also the presence of ischemic-type necrosis of myocytes in one of the cases, we concluded that ischemia of myocardium is the most probable diagnosis among our patients.