Anyone had any experience of this,My eleven month old Labrador Minnie is flumoxing the Vet,she has a lump on her hock which is soft and plyable, My Vet said its what horses get,but dogs dont get it :( trouble is Minnie does have it and she isnt a horse !! she had had it drained three times and it just fills up again,we think the fluid is coming from the joint,she snt lame or troubled by it in any way but if the fluid is from the joint surely that is dangerous,we have tried a pressure bandage but doesnt make any difference,Minnie is missing all her puppy shows as she keeps having her leg shaved.Any suggestions/advice would be gratefully received as My Vet is confused

and so am I :)