Hi everyone. I'm looking for opinions on my guy. Dan is a 26 year old racking horse. He suddenly (like in hours) developed a huge hump on the side of his face. The attached picture is from 3 weeks ago, the YouTube video is last week. It keeps getting larger and is very hard. Xrays show bone remodeling into the sinus.
Vet thinks it may be cancer (treated with antibotics first, just in case). Blood work shows bodily functions are good although he is
metabolizing muscle. The next step is sending him to UGA for more tests which will be a bit costly.
He lost weight this winter (typical for him over the past few years) but we haven't been able to recover this summer. I'm feeding multiple times a day (he isn't grazing well) and spends most of his time down in the woods just standing. When he does come to the pasture, he if often standing head-down sort of moving his head back and forth slowing.
If this were your guy, what you do?