They did not. The ultrasound came back completely normal according to what they told me. As far as the knot that I can feel, I really don't think it was present during the ultrasound. They did tell me that it could be a cyst or spermatoceles though and that if it was it might go away. This was probably a little over two years ago. I noticed the knot probably a few months after my last appointment. Because it hasn't changed it hasn't been a major concern, but definitely is the source of the pain, and even when it isn't constantly annoying me, it is a little more sensitive there if I'm feeling it. I also recently started seeing someone and the increased arousal has clearly exacerbated it. Concerning the hernia question, they checked for that too, and while I apparently don't have one, I've noticed that singing (I play guitar and sing) seems to irritate it too.