JFK's Granddaughter Reveals Terminal Cancer Diagnosis 1.5 Years After Giving Birth – Here's What We Know

The 35-year-old daughter of Caroline Kennedy and Edwin Schlossberg has bravely spoken about her cancer diagnosis and the difficult course of treatment she has endured.

John F. Kennedy's granddaughter revealed on Saturday, November 22, that she was diagnosed with terminal cancer in May 2024. She explained how she and her family have been coping with the news since then.

Tatiana Schlossberg, a journalist, shared that the disease was discovered shortly after she welcomed her second child. She recounted that her daughter was born on May 25, 2024, at 7:05 a.m., just minutes after she reached Columbia-Presbyterian Hospital in New York.

She and her husband, George, spent those first moments holding their newborn, taking in her arrival and the sense of newness she brought. A few hours went by before her doctor detected an unusual imbalance in her white blood cell count.

The doctor informed Tatiana that her bloodwork showed troubling results. While a typical white blood cell count ranges from about four to eleven thousand cells per microliter, hers had risen to an alarming one hundred and thirty-one thousand, prompting immediate concern.

Her doctor suggested that the results might be linked to pregnancy and childbirth, but also noted that leukemia was a possibility. Tatiana dismissed the concern at the time, telling George, "It's not leukemia," and wondering, "What are they talking about?"

She was eventually given a diagnosis, which her medical team identified as "acute myeloid leukemia, with a rare mutation called Inversion 3."

Tatiana spent five weeks at Columbia-Presbyterian Hospital following the birth of her daughter before being moved to Memorial Sloan Kettering for a bone-marrow transplant. She continued her treatment from home, where she underwent chemotherapy.

By January 2025, she had enrolled in a clinical trial for CAR-T-cell therapy, an immunotherapy used to treat certain blood cancers. It was during this period that her doctor informed her she had roughly a year remaining.

Today, Tatiana explained that she focuses on spending meaningful time with her family. She acknowledged that staying present is difficult, but allowing herself to experience memories as they come.