I was diagnosed with mediastinal diffuse B cell NHL stage 2B in 1999 and have been cancer-free since completing chemoradiation. I was treated with CHOP and then 21 cycles of radiation. I have done a little research and have seen that heart problems can occur from both adriamycin and radiation treatment. Has anyone heard of or had heart complications like this following CHOP? Or how about breast cancer? Is anyone familiar with MUGA scan to evaluate for heart/cardiovascular problems? Any help would be greatly appreciated. Thanks.