Doctors thought my back pain was creaky joints… it was actually a golf ball-sized tumor in my colon

Mark Swanson (pictured) from Ohio revealed he broke down and cried when doctors told him he had stage 3 colon cancer after he underwent surgery for what he thought was a benign condition.Mark Swanson (pictured) from Ohio revealed he broke down and cried when doctors told him he had stage 3 colon cancer after he underwent surgery for what he thought was a benign condition.Read MoreHealth News | Mail Online