My horse was 28 years old. Eric first noticed a cancer that was on the surface of his organs. How did he know this?

My horse was 28 years old. Eric first noticed a cancer that was on the surface of his organs. How did he know this?

Eric came by my barn to work with my four horses. The first he worked with had some major food allergies. Eric asked about the foods and we picked out what was good for this horse and what was not. The next two horses were in great shape except they were getting too much food so their livers were having a hard time. The last horse was 28 years old. Eric first noticed a cancer that was on the surface of his organs. How did he know this? I was told this by the vet. It was a type of melanoma that does not directly kill this type of horse. Eric also pointed out that the horse was putting too much weight on the front legs cause arthritis. He pointed it out to his colleague the issue. His colleague does structural integration for horses. He noticed the right rear leg had been hurt in the past, which was true but there was no way to see it. Eric pointed out the scar tissue had grown which his colleague and I could feel! She will come back for several visits to work the scar tissue out. Eric did some healing on it so it would not come back.