Dr. Sean Dineen 

Surgical Oncologist
Moffitt Cancer Center
Tampa, Fl. 33612
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Board Certified

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Dr. Sean Dineen is affiliated with Moffitt Cancer Center.

Fellowship Experience

MD Anderson Cancer Center

Additional Information

Dr. Dineen joined Moffitt Cancer Center in October of 2017. He specializes in the treatment of patients with complex GI cancers, particularly those with peritoneal metastases. He has a research program focused on identifying those factors which predict the development of peritoneal disease and novel treatments for such patients. He is well published in the field of GI Oncology. Dr. Dineen also is a dedicated educator and serves as the Associate Program Director for the Complex General Surgical Oncology Fellowship Program.


Cancer Focus: Appendiceal (Appendix) Cancer, Colorectal Cancer, Esophageal Cancer, Gallbladder Cancer, Gastrointestinal Carcinoid Tumor , GIST (Gastrointestinal Stromal Tumor) , Liver Cancer , Mesothelioma , Neuroendocrine Tumor , Pancreatic Cancer , Small Intestine Cancer , Stomach (Gastric) Cancer

Dr. Sean Dineen is an Assistant Member of the Department of Gastrointestinal Oncology at Moffitt Cancer Center. Dr. Dineen has a particular interest in the treatment of patients with metastatic disease, including carcinomatosis. In particular, he focuses on patients that have developed peritoneal spread of disease and the application of heated intraperitoneal chemotherapy (HIPEC) in the treatment of this advanced process. Dr. Dineen’s research focuses on identifying how the tumor and the local environment interact to promote metastatic disease. Dr. Dineen is a native of Lexington, KY. He earned his medical degree from the University of Louisville. He completed residency in general surgery at UT Southwestern in Dallas, which included a research fellowship focused on the tumor microenvironment. He subsequently completed a fellowship in Complex General Surgical Oncology at MD Anderson Cancer Center, where he earned the Clinical Excellence award from the Department of Surgery. Dr. Dineen joins Moffitt from the University of Kentucky, where he was previously the Medical Director of the Multidisciplinary Clinic at Markey Cancer Center. Dr. Dineen has an excellent publication record and has presented nationally and internationally on GI and peritoneal diseases. He is a member of the American College of Surgeons (ACS), the Americas Hepato-Pancreato-Biliary Association (AHPBA) and the Society for Surgeons of the Alimentary Tract (SSAT).