Bulge on Elbow
My Zeus has just developed a bulge on his left elbow, front leg.
It's about the size of an egg if you include the underlying bone and muscle. It doesn't envelope all of the leg at the joint, just mostly the back of the elbow.
It does not appear to hurt and can be manipulated and palpated without any indicating of pain. And, the dog readily lays on a hard surface using the elbow and it's bulge as support for his weight.
Any thoughts what this might be?