With the Vizslas smooth coat, lumps, and bumps are easily found. Just running your hands over them is all thats needed in most cases. Vizslas love attention, and most get rubbed on every day.
Histiocytoma go away on there own, so its only wait, and watch them. Vizslas are also prone to fatty tumors. I don't really consider them tumors. More of just a lumps of fat deposits. I have them checked, but not removed. Its why we see a lot of old lumpy vizslas. There just isn't a good reason to put them through surgery, for something that is cosmetic only.
I think all dogs over 10 years old, have a higher chance of developing cancer. My personal opinion, its the world we live in. A lifetime of being exposed to different chemicals takes a toll on our/their cells. While I don't use any chemicals in my backyard. There is only so much, you have control over.
Not all those who wander are lost.
Life is just a leap of faith.
Spread your arms and hold your breath and always trust your cape.
Two things define you. Your patience when you have nothing, and your attitude when you have everything.