@BareNecessities cheers Pete....
An update on Mr Riley....he has had an amazing surgery..I'm a bit dumbstruck. It was a very invasive tumour, but they managed to save his leg :0)
He had the outside two toes removed, plus the dew claw, which were all infected. The vet then used the skin from the toes to form a kind of figure of eight flap to close the wound, which would have remained open, due to the amount of tissue they had to remove. He then took the pads off the amputated toes and constructed new pads for his foot, to give him stability and cushioning so he can walk on it again....incredible, I thought!
He is in a lot of pain, but on the mend :0)