ST. LOUIS, MO (KTVI-FOX2Now.com) - Was a cancer recovery a miracle? The St. Louis Catholic Archdiocese thinks so. They say a St. Louis woman's cancer has vanished because of her prayers to a priest who's now on the verge of becoming a saint. They've asked the Vatican to certify her case miracle.

There are some things medical science can't explain. Rachel Lozano's cure is one of them. Rachel Lozano was first diagnosed with a rare form of cancer when she was fifteen. By the year 2000 it looked hopeless. On a church trip that year to the Vatican for a ceremony honoring Father William Chaminade. she prayed that Father William Chaminade to heal her.

Her prayers continued. So did the cancer. Finally, she was given weeks to live. When surgeons operated they found a dead tumor. Six years later Lozano remains cancer-free. After an investigation the St. Louis Archdiocese concluded it was the prayers and Chaminnade that cured the cancer. If the Vatican agrees chances are good that Chaminade, a French priest and founder of the Marianist order could become a saint.

Sign Up For Daily Newsletters From News 11

"I really felt a connection and felt that he was the person to pray to. It was very faith-driven." said Cancer Survivor Rachel Lozano

The Vatican will decide whether Chaminade becomes a saint based on its investigation. Doctors say the chances that Rachel survived this long is almost zero.