The short answer
Robin Roberts felt a lump in 2007, but her mammogram looked normal because of dense breast tissue; an ultrasound found triple-negative breast cancer. She was treated with a mastectomy, chemotherapy, and radiation. Years later she developed a treatment-related blood disorder, MDS, and had a bone marrow transplant. She remains a survivor and advocate.
Robin Roberts was diagnosed with triple-negative breast cancer in 2007 after she felt a lump during a self-exam.
Her mammogram came back normal because she had dense breast tissue; an ultrasound and biopsy revealed the cancer.
Triple-negative breast cancer lacks the receptors many targeted therapies rely on, so her treatment centered on chemotherapy, along with a mastectomy and radiation.
About five years later she developed myelodysplastic syndrome (MDS), a rare blood disorder linked to her earlier chemotherapy, and had a bone marrow transplant in 2012.
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The full explanation.
Who she is
Robin Roberts is an American television broadcaster and co-anchor of ABC's Good Morning America. Before joining the morning show, she spent years as a sportscaster, and was the first African American woman to anchor ESPN's SportsCenter. Over the past two decades she has also become one of the most widely known faces of cancer survivorship, having shared two serious health battles openly with viewers.
The diagnosis
Roberts was diagnosed with breast cancer in 2007. She was in the habit of doing self-exams, and when she felt a lump in her breast she knew to have it checked. What happened next is an important part of her story: her mammogram came back completely normal.
The reason was that Roberts had dense breast tissue, which can make tumors difficult to see on a mammogram — both dense tissue and tumors show up white on the image. Because she had felt a lump, her doctor did not stop at the normal mammogram and ordered an ultrasound. That scan revealed a tumor, and a biopsy confirmed it was cancer. It was triple-negative breast cancer, an aggressive subtype.
The treatment
Triple-negative breast cancer lacks the estrogen, progesterone, and HER2 receptors that many breast cancer therapies are designed to target. That means some of the most common targeted and hormone treatments do not work against it, and chemotherapy becomes the mainstay. Roberts's treatment combined a mastectomy, chemotherapy, and radiation. She chose to share her diagnosis on national television, later recalling how much lighter she felt once she was no longer hiding it.
Her story then took a second, harder turn. About five years after her breast cancer, in 2012, Roberts was diagnosed with myelodysplastic syndrome (MDS), a rare disorder of the bone marrow. In her case, the MDS was a rare late complication of the very chemotherapy that had helped treat her breast cancer. She underwent a bone marrow transplant, with her sister as a matched donor, and returned to Good Morning America in 2013. Her public account of needing a donor is credited with a dramatic surge in bone marrow registry sign-ups.
What her story teaches
Roberts's experience carries several lessons about breast cancer. The most striking is that a normal mammogram is not always the final word. Screening is valuable, but in people with dense breasts a tumor can hide on the image. That is why paying attention to a new lump or change — the symptoms of breast cancer — still matters, and why an ultrasound or additional imaging is sometimes needed when a symptom does not match a "clear" mammogram.
Her case also shows why the subtype of a breast cancer matters so much. Not all breast cancers are alike; the different types of breast cancer, including triple-negative disease, respond to different treatments. Because triple-negative cancer lacks the usual receptors, her plan leaned on chemotherapy rather than hormone or HER2-targeted drugs. Our overview of breast cancer treatment explains how these choices are made.
Finally, her later MDS is a sobering but honest reminder that powerful cancer treatments can, in rare cases, carry long-term risks of their own. This is not a reason to avoid treatment — it saved her life — but it is why survivors continue to be monitored for years afterward.
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The bottom line
Robin Roberts's triple-negative breast cancer was found in 2007 only after an ultrasound caught what a normal mammogram missed in her dense breast tissue, and she was treated with surgery, chemotherapy, and radiation. She later overcame a rare treatment-related blood disorder with a bone marrow transplant. Her story is a reminder to act on a lump even when a scan looks clear — and that survivorship can be a long road.
Words to know
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Common questions
▸What kind of breast cancer did Robin Roberts have?
She was diagnosed in 2007 with triple-negative breast cancer, an aggressive subtype that lacks the estrogen, progesterone, and HER2 receptors that many breast cancer treatments target. That is why her treatment relied heavily on chemotherapy.
▸Why did her mammogram miss the cancer?
Roberts had dense breast tissue, which can hide tumors on a mammogram because both dense tissue and tumors appear white on the image. She had felt a lump during a self-exam, so her doctor ordered an ultrasound, which found the tumor that was then biopsied.
▸What was the blood disorder she developed later?
In 2012 she was diagnosed with myelodysplastic syndrome (MDS), a rare disorder of the bone marrow. In her case it was a rare complication of the chemotherapy she had received for breast cancer years earlier. She had a bone marrow transplant, with her sister as the donor.
▸Is Robin Roberts a survivor now?
Yes. She came through both her breast cancer treatment and her bone marrow transplant, returned to Good Morning America, and has spoken and written about her experience as a survivor and advocate.
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