World Tumor Registry Launches Breast Cancer Registry

New digital platform aims to improve breast cancer diagnosis accuracy worldwide

Apr. 14, 2026 at 4:52am

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A highly detailed, translucent X-ray-style image revealing the intricate internal structure of a human breast, with glowing lines defining the complex tissue and cellular anatomy, conceptually representing the educational resources available through the new Breast Cancer Registry.The World Tumor Registry's new Breast Cancer Registry aims to elevate diagnostic accuracy by providing pathologists worldwide access to a comprehensive digital library of annotated breast tumor cases.Today in Pittsburgh

The World Tumor Registry (WTR), a global non-profit organization, has announced the launch of its Breast Cancer Registry, a digital, open-access platform designed to standardize and elevate the accuracy of breast cancer diagnoses globally. The registry will feature high-quality whole slide images and detailed diagnostic information on common and rare breast tumor cases contributed by expert pathologists from around the world.

Why it matters

Breast cancer is the most common cancer affecting women worldwide, making the need for accurate and timely diagnosis critical. The Breast Cancer Registry aims to provide pathologists everywhere, regardless of their location, access to the latest digital tools and educational resources to improve breast cancer diagnosis and patient outcomes.

The details

Under the leadership of Dr. Edi Brogi, Director of Breast Pathology at Memorial Sloan Kettering Cancer Center, the Breast Editorial Board has begun collecting, reviewing, and annotating breast tumor cases to publish on the WTR website. The registry will utilize an educational interface where users can view whole slide images and learn about the microscopic features, clinical information, biomarkers, and other details of the contributed cases. The goal is to have 500 fully annotated breast tumor cases available by the end of 2026, covering a wide range of common and rare subtypes.

  • The Breast Cancer Registry is now live with the first 100 fully annotated cases available.
  • The goal is to have 500 cases in the registry by the end of 2026.

The players

World Tumor Registry (WTR)

A global non-profit organization with a mission to improve cancer patient outcomes through better diagnosis and education.

Dr. Yuri Nikiforov

Professor of Pathology at the University of Pittsburgh and WTR Founder and President.

Dr. Edi Brogi

Director of Breast Pathology at Memorial Sloan Kettering Cancer Center and Chairperson of the Breast Editorial Board for the WTR Breast Cancer Registry.

Dr. Carlos Munoz-Zuluaga

Breast pathology fellow at Memorial Sloan Kettering Cancer Center and Project Administrator for the Breast Cancer Registry.

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What they’re saying

“With breast cancer affecting more lives than any other cancer in the U.S. and around the world, the urgency for diagnostic accuracy has never been higher. The most effective treatment cannot be offered without a correct and timely diagnosis. That is why we have focused our efforts on breast cancer – to provide every doctor, regardless of their geographic location, access to the digital tools of modern cancer diagnostics.”

— Dr. Yuri Nikiforov, Professor of Pathology at the University of Pittsburgh and WTR Founder and President

“I am thrilled to announce that the Breast Cancer Registry is now live. The first 100 fully annotated breast tumor cases are already available to view and study, and our goal is to have 500 cases in the Registry by the end of the year, with examples of essentially every breast tumor type and subtype. I invite pathologists and pathology trainees from all over the world to contribute common and rare cases to this open-access, unique, worldwide educational resource. Working together, we will directly improve cancer diagnostic accuracy and patient outcomes globally.”

— Dr. Edi Brogi, Director of Breast Pathology at Memorial Sloan Kettering Cancer Center and Chairperson of the Breast Editorial Board

What’s next

The World Tumor Registry plans to deploy two more projects, the Lung Cancer Registry and the Skin and Melanoma Tumor Registry, later in 2026, followed by all organ/site registries by the end of 2028.

The takeaway

The launch of the Breast Cancer Registry by the World Tumor Registry represents a significant step forward in improving global cancer diagnosis accuracy and patient outcomes, particularly for the most common cancer affecting women worldwide. This open-access digital platform will provide pathologists everywhere with access to cutting-edge educational resources and tools to enhance their breast cancer diagnostic capabilities.