Mercy Oncologist Explains Triple-Negative Breast Cancer

Research shows higher rates among African American patients

Apr. 13, 2026 at 3:27pm

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A ghostly, translucent X-ray image showing the internal structures of a human breast, with the cancerous cells appearing as bright white shapes against a dark background, conveying the clinical and scientific nature of understanding triple-negative breast cancer.An X-ray view reveals the complex cellular structures underlying the aggressive nature of triple-negative breast cancer.Baltimore Today

Dr. David Rosenberg, an oncologist at Mercy Medical Center in Baltimore, discussed the development of triple-negative breast cancer and why it is more common among African American patients during an interview with local news station WBAL.

Why it matters

Triple-negative breast cancer is an aggressive form of the disease that lacks certain receptors, making it more difficult to treat. Understanding the factors that contribute to its higher prevalence in the African American community is crucial for improving outcomes and access to care.

The details

Dr. Rosenberg explained that triple-negative breast cancer develops when breast cancer cells do not have estrogen receptors, progesterone receptors, or HER2 protein. This means the cancer cannot be treated with hormone therapies or targeted HER2 drugs. Ongoing research is examining genetic and environmental factors that may contribute to the higher incidence rates among African American women.

  • The interview with Dr. Rosenberg aired on April 13, 2026.

The players

Dr. David Rosenberg

An oncologist at Mercy Medical Center in Baltimore who specializes in breast cancer treatment and research.

Mercy Medical Center

A leading academic medical center in Baltimore, Maryland that provides advanced cancer care and conducts research.

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What they’re saying

“Understanding the factors that contribute to its higher prevalence in the African American community is crucial for improving outcomes and access to care.”

— Dr. David Rosenberg, Oncologist

The takeaway

This interview highlights the ongoing need for more research and awareness around the disparities in triple-negative breast cancer, which disproportionately affects the African American community. Improving access to screening, early detection, and advanced treatments is essential for addressing this critical health equity issue.