Democratic presidential candidate and former North Carolina senator John Edwards missed an Iowa campaign event on Tuesday so he could be with his wife as she prepared for a medical appointment the following morning.

Elizabeth Edwards, diagnosed with breast cancer just before the 2004 election, when her husband ran for vice president, has survived chemotherapy, surgery, and radiation and has written a book -- Saving Graces -- about her entire journey.

Edwards' campaign crew has insisted Wednesday's appointment was a routine follow-up to a medical visit his wife had the day before and that Elizabeth Edwards, 57, has been living cancer-free.

Today at noon, Edwards will hold a press conference about his wife's health and how it may -- or may not -- affect his candidacy.

Tonight at 8:00 PM on ABC's Extreme Makeover: Home Edition, television viewers get to witness the week-long renovation of a 135-year-old farmhouse belonging to 26-year-old Shawna Farina and her three children.

It's not just the powerful makeover of this drafty Indiana house that makes for a touching story. It's the fact that Farina has been surviving breast cancer for the past 18 months, raising three children, working, raising money, and organizing her local American Cancer Society Relay For Life walks -- while living in an old, drafty farmhouse -- that makes this story truly inspirational.

Inspired by her mother, who was diagnosed with breast cancer when she was a child, Farina became involved with Relay For Life -- a yearly, overnight event held in more than 4,700 communities to celebrate cancer survivorship. And now, in tandem with Farina's extreme makeover, volunteers from 18 different Relay for Life events across southern Indiana have been honoring Farina through Extreme Relay For Life events consisting of five back-to-back 24-hour relays. More than 5,000 people and the cast of crew of the Extreme Makeover: Home Edition participated while construction took place on Farina's house.

It all unfolds this evening -- the story of one courageous young woman raising awareness about breast cancer in the midst of her own battle. And the story of one dedicated bunch of supporters who are building her spirit -- and rebuilding her home.