I have never heard of this 90% could be. There is a doctor who says outside the testicle usually ok inside the testicle not good. I had stage 1 non seminoma and yes the tumour can grow quick but It will only kill if left untreated and it spreads to the pelvic area as it is harder to treat. My testicle was 3 times the size of my other and I had the op and one dose of chemo and I am now 14 years on. (Touch wood) TC usually takes the same route if it spreads which is up so to the stomach then lungs then brain but this is after years of ignoring it again Lance Armstrong story. There is no way of knowing what type it is until they cut it up and check it under a microscope. After two years I am sure it would of grew a lot more than it has. Get the ultra sound done and stay off Google.
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