Hi- This is a 10 yr old m/n obese Golden Retriever. He had a large mass on the left shoulder removed two years ago that was hemangiosarcoma, liver /spleen sampled normally. Did doxyrubricin protocol. Mass regrew at one year. again removed another round of chemo . Abdomen is checked every three months with ultrasound he’s been great. He is dysplastic. today he presented for a marked change in his mobility. He is neurologically sound. I palpated mass like change at L6-7 area fna  was lipid. ultrasound no change vertebrae. Rad i am posting I think I see a change in the L6. I haven’t seen a diagnosed HSA in a vertbrae but i’m worried my good luck may be running out with this guy.Am I seeing something? Next step CT?