First post, but I've been lurking for months. Bear is my 11 year old trash bandit, tupperware hoarding, wrecking ball of excitement rottweiler and the best friend I've ever had (human or canine). 

In January he got a lump on his hock which grew rapidly, ulcerated, and had babies further up the thigh. Biopsies of the mass and lymph node weren't able to confirm any diagnosis, but imaging made it clear that surgical resection wasn't an option. I finally saved up the money, and his amputation was a few weeks ago. By now he's lost a ton of muscle mass, and the surgeon also found 2 more nodules during surgery in his groin. She took those out with good margins, as well as the lymph node, and everything was sent to histo.

The news wasn't good. Rare variant of subcutaneous hemangiosarcoma, with lymph node involvement in the form of a mass. Unfortunately, we only did chest x-rays pre-surgery, so abdomenal ultrasound has to wait until our appt with oncology in a couple weeks. Hemangiosarcoma is one of the hardest cancers to treat, and due to the rare occurrence of this particular variant, the literature is sparse at best.

Given his age, I'm disinclined to agree to multiple antineoplastic agent treatment. Doxirubucin alone seems to be as safe and effective as a cytotoxic chemical compound can be for a cancer that's lethal and incurable.

I'd welcome any advice from those who have experience dealing with hemangio, particularly the chemotherapy aspect of treatment. Also any supplements you'd recommend for me to research. He's taking high bioavailability tumeric/curcurmin, fish oil, and turkey tail right now. And diet? I know in humans, glucose and carbs "feed" tumors, but cutting carbs completely is dangerous for dogs.

Thanks in advance,

Sam