Case 227. Reference case 227A

　 　 　 　
　 In situ hybridization histochemistry identifies CMV-DNA in a few cardiomyocytes. 　
　 　 　 　

　

 　 Immunostaining for CMV antigen was also positive. When the infected cell number is small, histochemical demonstration of CMV antigen or genome may be needed, as was so in this case.