About Me

I am a diagnostic radiologist with special expertise in gastrointestinal malignancies, and I use cutting-edge methods (MRI, virtual colonoscopy, PET and CT scanning, CT enteroclysis, CT enterography, and barium studies) to diagnose and stage cancers of the esophagus, stomach, small intestine, and colon. I also serve as director of the Radiology Department’s CT section and director of gastrointestinal radiology.  I serve as Director of CT and Director of Gastrointestinal Radiology at Memorial Sloan Kettering.

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As a member of the colorectal cancer Disease Management Team I collaborate closely with Memorial Sloan Kettering’s colorectal surgeons and gastroenterologists to accurately diagnose and stage colon cancer, malignant bowel obstruction, recurrent rectal cancer, and other gastrointestinal problems. I very much enjoy working with patients, and learn as much as I can from them about their symptoms to aid my interpretation of their images. I also enjoy explaining the imaging findings to patients to give them a better understanding of their illness.

My research interests include early detection of colon cancer through combined structural and molecular imaging approaches. For this work I have been awarded three grants (from The Society of Memorial Sloan Kettering Cancer Center and The Society of Gastrointestinal Radiologists). I am particularly involved in research using MRI to improve rectal cancer staging. As director of CT, I am interested in how best to use Dual Energy CT, and in keeping radiation doses as low as possible while obtaining maximum information.

I lecture and present research at national and international meetings of professional groups such as the Society of Gastrointestinal Radiologists and the Radiological Society of North America. I am also a member of Memorial Sloan Kettering’s Research Council and have input on the radiologic aspects of every research study performed at the Center. As a reviewer for several leading journals I have rapid access to the most recent advances in radiology and oncology.

  • Clinical Expertise: Body CT and MRI; Gastrointestinal Radiology
  • Languages Spoken: English; French
  • Education: MD, Hahnemann University School of Medicine
  • Residencies: Lenox Hill Hospital
  • Fellowships: New York University Medical Center/ Bellevue Hospital
  • Board Certifications: Diagnostic Radiology

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Visit PubMed for a full listing of Marc J. Gollub’s journal articles

Pubmed is an online index of biomedical articles maintained by the U.S. National Library of Medicine and the National Institutes of Health.

Clinical Trials

Research is integral to our mission at Memorial Sloan Kettering, and clinical trials help us discover better forms of patient care and treatment. For you, this could mean access to a new therapy or therapy combination. Click to see a list of the trials I’m currently leading.


Most major health insurers offer plans that include MSK as one of their in-network providers. If MSK is in-network, it means all our doctors are too. Medicaid and New York State Medicare also provide benefits for care at MSK.

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