well went to my mums today and our family dog  bouncer -  (hes a lab x alsation )  has a lump in his mouth.   its like a lump with loads of other lumps on top of it.  it was on his gum but was hidden in his mouth under  his teeth -  hs in no pain with it!!!
  my mums going to take him to the vets tonight but in the mean time were all worried   th dogs not young hes 17 years old so an operation to remove it is out of the question.

any ideas what it could be

my first thought was cancer   but my brother has a puppy which grabs him by the mouth  could it be an infected bite??