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Welcome to Just Answer. Can you take a picture of the lesion/ growth and post it here for me to see? That will help a great deal.
Ok. From what I can see in the picture here are some considerations for it:
1) Interdigital cyst
2) Interdigital abscess - possible foreign material in it
3) Abnormal growth of tissue - given age, not most suspicous of cancer, but can't rule out
At this point, I'd get him to your vet for them to clean up the area around the lession. They can remove the hair and better evaluate it. I would love to aspirate it with a needle and make a slide of it to tell what type of tissue it is or if it was inflammatory in nature (infectious). Depending on what is seen, this may be something that gets better with antibiotics and an E-collar to help him from licking it. IT may be something that needs drained or expressed if it is a cyst or abscess.
Most likely it won't get better till oral antibiotics are used. It may be something that surgery is brought up with if it is of more concern.
Ok. Much better picture for me! I'm getting a better idea what it is. It actually looks very much like the growth of a pad tissue under the skin. Basically, in certain situations, normal tissues (keratinized paw pad material in this case) can grow in abnormal places. I'm going to be very, very suspicious that this is normal keratinized paw pad tissue growing under the skin and eventually making its way to the surface. I've seen one similar to this on the outter portion of a paw. The long filamentous finger like things are the keratinzed tissues that should be worn down before they get that long. I would still keep that appointment with your vet and they'll most likely recommend excising it. That should be curative. I'd send the lesion off to make sure.
You can let me know on this thread. I'll keep it open. Sorry I had to step away from the computer for a moment.
Awe, yes that would explain why the legion feels hard on the top and soft near the bottom. I think you've solved it. The vet here in Sacramento was not too helpful. He just said he does not know what it is but is should be taken off.. Do you think it is really worth the 95.00 for me to send it off? I figure he is so young that cancer is not likely. Do you know if they will they be testing for anything else?