I did double valve replacement in 2010, replacing mitral and aortic valves. I had pnumonia last year June 2015. This year I was diagnosed with aortic stenosis with a PG of 46mmHg. I then booked for angipography, TEE and MRI. The intially tests ECHO showed stenosis of both valves as it looked like the cardiac surgen used small valves since in 2010 I was still young. The MRI and TEE showed that the valves are okay, however, there is a lesion between the heart and lungs that is giving me severe chest pains that are not related to exertion. The assumption of the doctor is that the leion could be from the cut that was created during surgery six years back in 2010. My question is, What is a heart leasion and what leading to the wound not to heal from six years back and what is the possible way as moving forward? What could be done because nitrates seems not to be working to alliviate pain?