It was completely different in Ollie's case, his lump was growing on the side of his nose internally under the skin and he went in to the vets purely for an exploratory and to see if it was an abcess around his tooth root, the vet couldn't get a needle in to take a biopsy as the lump was so hard so she put him under GA to get x-rays and found a solid bony growth surrounding his tooth root, she rung me to say this was very unusual for bone growth to have grown so quickly and could she do the operation there and then to make an incision in his mouth to see what exactly was going on. Of course I agreed, i didn't really have time to think about it but wouldn't have done differently if I had.
What she found was a large boney type growth completely encircling his tooth root, she had to remove the tooth with the growth attached it was the only way, so no actual jaw removal just tooth, once it was out and could examine it better she said she hadn't seen anything like it, solid bone with a pulpy inner.
It was sent off for analysis, the pathology lab said that there were several cells present they had never encountered before and they were passed around the lab for analysis and inspection

, but there was squamous type cancer cells present also so they felt the unknown cells were cells migrating into cancer cells.
The general verdict was with the squamous cells present it would have already spread to his jaw etc.
I had the choice of removing cells (jaw) around where the tumour was removed from or watching and waiting, with Ollie's age (12) and the fact that he was having a new lease of life I decided to watch and wait, within a few weeks the lump was returning so we accepted the fact that it was an aggressive tumour and there was little we could do, BUT the lump now seems to have disappeared, I can feel the tiniest of lumps but much less than three weeks ago and he is absolutely thriving to the point he's regaining weight again, it's a mystery but I've just accepted it.
I was advised to put him on flaxseed oil from Holland and Barrett and to give him banana twice a week as these are both cancer fighting and he also has selenium with vits A, C and E as he was showing dementia symptoms at the start of all this, all symptoms have now disappeared and he's on no medication from the vet just the natural stuff. I'm happy but more importantly so is he.
Now you can see why I was asking so many questions