Sean Swarner

Taken from http://cancerclimber.com:
Two-time cancer survivor Sean Swarner is living proof of triumph against all odds. At age 13, Sean was diagnosed with life-threatening Advanced Stage IV Hodgkin's Disease. His prognosis was critical, and doctors did not expect him to live more than three months. Yet treatment after treatment, Sean improved. His family felt his turnaround was nothing short of a miracle - until the unimaginable happened. Two years later, at age 15, doctors found a cancerous tumor in Sean's chest wall. It was Askin's Sarcoma, another, entirely different and potentially fatal form of cancer. This time, doctors gave him only two weeks.
Nearly 15 years later, and with only partial use of his lungs, Sean stood at the summit of Mt. Everest with those memories fresh in his mind. He is the first cancer survivor to climb the world's highest mountain, and has since conquered Kilimanjaro, Elbrus, Aconcagua, Vinson Massif, Kosciusko, and Denali/Mt. McKinley (highest peaks in Africa, Europe, South America, Antarctica, Australia, and North America). To most, this feat may have seemed impossible, but Sean learned at a young age that no challenge is too great, no peak too high.