Couple Diagnosed With Lung Cancer Just Five Weeks Apart Lisa and Seth Doyle say they’ve had their share of hardships during their 35-year marriage, but few challenges compare to the devastating diagnosis they both received just weeks apart. Lisa was diagnosed with stage three lung cancer in July after several bouts of bronchitis that wouldn’t go away. Then, just five weeks later, her husband, Seth, was also diagnosed with lung cancer after his face started sagging and he suffered memory loss.