I have noticed two hard lumps in between my horses eyes lately. It looks like you cut a golf ball in half & placed them under the skin in between his eyes. I had the vet come take a look and she did X-rays and she seems to think that it is a benign tumor that is growing outwards from his skull. I was wondering if anyone else has had this happen to their horse and if there are any other opinions? I have done some research online and I have read that this is where the skull meets together & if a horse hits it hard enough it will cause a suture and can take months to go away. I am really hoping that its not a tumor and he will not require surgery to have it removed. He just turned 7 years old. Can anyone help all opinions are welcomed. I am getting a second opinion of the x-rays on Monday. I have attached the pictures that I have. Sorry if they are not the best.