My 2.5 yo F Lab has two "bumps" on her. One is on her neck slightly above
her shoulder blades smack dab in the middle. The other is on her right
shoulder.

They don't seem to be fluid because when I press and palpitate, the whole
thing moves. I've had enough joint injuries of my own to know what fluid
feels like. The one on her neck is maybe the size of the top quarter of a
raquetball. The one on her shoulder is larger.

I'm not sure how long they've been there because she's losing weight and I
didn't notice them when she was fat. Still, having given her 2 baths before
she started losing weight, I think I would have noticed if they were there
the whole time.

Any ideas?