"I have recently been diagnosed with a rare type of cancer and am currently undergoing treatment, including surgery and chemotherapy.” Arnold says. "I am very fortunate as the prognosis is good. While there is never a good time to get news like this, getting it just as we are building our new family is tough in many ways ... But being surrounded by the love of my husband and our two beautiful children is actually in many ways giving me the strength to fight it even stronger."
Vowing to fight her rare form of cancer, Jen Arnold, star of TLC's The Little Couple, has decided to let cameras document her ordeal.
Arnold, 39, is a neonatologist at Texas Children's Hospital where she serves as medical director of the Pediatric Simulation Center and an assistant professor of pediatrics at Baylor College of Medicine. She is "currently undergoing treatment, including surgery and chemotherapy," she told PEOPLE Thursday.