Lump In The Floor Of Th Mouth Lump On Dogs Rear Leg About The Size Of A Peach Pit And Her Front Legs Fall Out And She Hits The Floor.?

Lump on dogs rear leg about the size of a peach pit and her front legs fall out and she hits the floor.? - lump in the floor of th mouth

My son is 8 years old my female pitbull, and after the mass in her leg back, no signs of infection, but his front legs began to fall from time to time, and it falls to the ground and beats his chin? It goes to the vet on Monday, but would appreciate any information to know today. Thank you very much.