Only one month after her ex-boyfriend Lee Grivas was discovered dead in his apartment — the victim of an apparent drug overdose — Christina Applegate has been diagnosed with an early form of breast cancer, a rep for the actress confirms.

"Benefitting from early detection through a doctor-ordered MRI, the cancer is not life threatening," reads the statement from the 36-year-old Samantha Who? star’s rep. "Christina is following the recommended treatment of her doctors and will have a full recovery."

Christina has long been a supporter of breast cancer research and prevention. Her mother, Nancy Priddy, is a breast cancer survivor and in 2003 the Married…With Children actress acted as the spokesperson for Lee National Denim Day, a fundraiser to benefit Women’s Cancer Programs of the Entertainment Industry Foundation.

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