Hi, Thanks for writing in. It is important to know what tumor your relative is having and the stage of cancer. Most testicular tumors are of a group known as seminoma and this is the most widely occurring tumor. Seminoma has a good cure rate if detected early and this shows good response to treatment in patients. There is another group of testicular tumors known as non seminomatous germ cell tumors and this group has many sub tumor types. They tend to be more aggressive than seminomas and invasion is common.The prognosis of non-seminomatous germ cell tumors is variable and depends on the biological behaviour of individual tumors. Prognosis can be inferred from tumor markers, location of the primary tumor and of course presence of metastases. Treatment at any cancer research institute is recommended depending on his location. Please do not worry.