Memorial Sloan Kettering brings a vast body of knowledge and expertise to the care of people with cancer of unknown primary. Many recent advances in diagnosing and treating cancers of unknown primary can be attributed to our multidisciplinary team of doctors.
Our team of experts consists of medical oncologists who specialize in these tumors, as well as surgeons, radiation oncologists, and other doctors. For some people, their MSK care team may include gastroenterologists, endocrinologists, or pulmonologists as well.
Nurses, social workers, and other healthcare professionals are also available to help.
The following is a list of our experts in cancer of unknown primary.
Pathology
![Memorial Sloan Kettering pathologist Olca Basturk](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/18182/1x1/basturk_181204_08_1200x1200.jpg?h=cd2a7045)
Attending Pathologist
![Memorial Sloan Kettering pathologist Jason Chang](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/177661/1x1/chang_1200x1200.jpg?h=cd2a7045)
Assistant Attending Pathologist
![MSK cytopathologist Natasha Rekhtman](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/519/1x1/rekhtman-natasha_171110_005_1200x1200.jpg?h=cd2a7045)
Attending Pathologist
![Jennifer L. Sauter](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/147478/1x1/sauter-jennifer_200124_20_1200x1200.jpg?h=cd2a7045)
Associate Attending Pathologist
![Memorial Sloan Kettering surgical pathologist Jinru Shia](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/578/1x1/shia_170724_1200x1200.jpg?h=cd2a7045)
Director, Gastrointestinal Pathology
![Memorial Sloan Kettering pathologist Carlie Sigel](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/12968/1x1/sigel-carlie_171108_1200x1200.jpg?h=cd2a7045)
Director, Gastrointestinal Pathology Fellowship Program
![William D. Travis, MD](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/638/image/travis-william-1x1.jpg?h=fbf7a813)
Director, Thoracic Pathology
Medical Oncology
![David H. Ilson, MD, PhD](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/295/image/ilson-david-1x1.jpg?h=fbf7a813)
Attending Physician
![David Paul Kelsen, MD](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/326/image/kelsen-david-paul-1x1.jpg?h=fbf7a813)
Edward S. Gordon Chair in Medical Oncology
![Memorial Sloan Kettering medical oncologist Eileen O'Reilly](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/461/1x1/o-reilly_161213_15_1200x1200.jpg?h=cd2a7045)
Winthrop Rockefeller Endowed Chair of Medical Oncology; Chair, Human Research Protection Program and Institutional Review Board; Co-Director, Medical Initiatives, David M. Rubenstein Center for Pancreatic Cancer Research; Section Head, Hepatopancreaticobi
![Leonard Saltz, MD](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/546/image/saltz-leonard-1x1.jpg?h=fbf7a813)
Executive Director for Clinical Value & Sustainability; Head, Colorectal Oncology Section
![Anna M. Varghese, MD](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/19776/image/varghese-anna-1x1.jpg?h=fbf7a813)
Associate Attending Physician
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