Teen’s Leg Bump Turned Out to Be Cancer and Doctors Thought She Wouldn’t Live to 17. Now She’s a High School Grad

Teen’s Leg Bump Turned Out to Be Cancer and Doctors Thought She Wouldn’t Live to 17. Now She’s a High School Grad

"Not everybody has a second chance at life, we're so thankful," mom Dori Maddry tells PEOPLEDori MaddryMacKenzie Maddry was diagnosed with bone cancer in Dec. 2020 — and then her treatment led to another diagnosis: end-stage heart failureDoctors initially thought she wouldn't live to see her 17th birthday, but thanks to a life-saving heart transplant, she just graduated high schoolAs for the future, MacKenzie, now 18, plans to become a nurseHigh…