We're sad to report that 'Samantha Who?' star Christina Applegate, 36, has been diagnosed with breast cancer during a regular MRI (magnetic resonance imaging) scan.

Christina's rep Ame Van Iden announced:

"Christina Applegate was diagnosed with an early form of breast cancer. Benefiting from early detection through a doctor ordered MRI, the cancer is not life threatening."

The rep added: "Christina is following the recommended treatment of her doctors and will have a full recovery. No further statement will be issued at this time."

To find out more about breast cancer detection and how you can lower your risk, please check out www.breastcancer.org