Welcome to JustAnswer! I would be happy to assist you. I am a 2003 graduate from UC Davis and a Medical Director of a 4 veterinarian practice.
Sorry to hear about this concern.
Well, a little bothered that it is hard to the touch, but that is not necessarily indicative of cancer.
This could be some type of allergic reaction, a cyst, a lipoma (fatty tumor) as well.
If your vet is not sure when you do an exam, which I strongly recommend, they might recommend a fine needle aspirate test.
she is acting fine, eating
Fine-needle aspirate test is performed usually without anesthesia and is very quick. Your veterinarian takes a few needle samples from the lump (the needle is no larger than the needle used to give vaccines). The sample is smeared on to microscope slides and submitted to the laboratory. It is not always as definitive as a biopsy (this is a full tissue sample), but often it can yield enough information to help guide you and your vet as to whether a biopsy is needed, or if surgery should be performed.
That is where I would start to help evaluate the lump.
since it moves that is good right
Not necessarily. But, certainly not bad either.
so do you think it might be mast cell
I have no reason to assume mast cell anymore than any other tumor, cyst, etc...
If your pet was a Boxer breed, that would be a different story.
so since she is eating and acting normally thats a good sign...
No. There is no connection between the mass and appetite and activity level.
Some pets can have huge cancerous tumors on skin that have not spread elsewhere, you still be very active and hungry.
oh ok just thought if it was cancerous she woulb be lethargic,not eating
thanks for the info...
Nope. Not always
You are very welcome.
Please remember to close the question by clicking “accept” before just exiting chat. My family greatly appreciates it. Or, let me know if there is anything else I may add to try and be more helpful or informative.