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Gastrointestinal Oncology

If you’ve been diagnosed with cancer of the gastrointestinal track, it’s important to be evaluated by cancer experts before beginning treatment.  We can help.

Karmanos’ Gastrointestinal & Neuroendocrine Tumors Specialists

Our Gastrointestinal & Neuroendocrine Tumors Multidisciplinary Team includes surgical oncologists, medical oncologists, radiation oncologists, interventional radiologists, pathologists, pharmacists, specialized nurse practitioners, dietitians, social workers, research personnel, and genetic counselors. The team is entirely focused on treating gastrointestinal cancers, as well as clinical research revolving around gastrointestinal malignancies, and shares its collective expertise to create a customized treatment plan for each patient. For example, gastrointestinal cancers commonly  spread to the liver that often requires a detailed assessment by the members of the  multidisciplinary team using sophisticated imaging techniques, followed by a combination of treatment approaches.

Cancers and diseases treated include:

Evaluation & Diagnosis

Each patient receives personal attention from the Gastrointestinal & Neuroendocrine Tumors Multidisciplinary Team. During your initial visit, a physician will review your medical records and medical history,  radiology  and pathology studies. The team meets regularly to discuss patient care issues and refine individual patient treatment plans. Patients who benefit most from a consult with our specialists include those:
  • Any patient with cancer of the gastrointestinal or neuroendocrine system who specifically requests being seen by Karmanos’ Multidisciplinary Gastrointestinal & Neuroendocrine Tumors Oncology Team to initiate treatment or to secure a second opinion
  • Individuals with a personal and/or family history suggestive of hereditary gastrointestinal cancer, which includes any of the following:
  • Colorectal cancer before age 50
  • 10 or more colon polyps
  • Stomach cancer, specifically the diffuse type
  • Presence of related cancers including colon cancer, endometrial (uterine) cancer, ovarian cancer, stomach cancer, sebaceous skin tumors, or primary brain tumors

Innovative, Individualized Care

The team uses the latest technologies, including the da Vinci® Si™ Surgical System, minimally invasive surgical procedures and cryotherapy, to achieve optimum success for our patients.  Here’s what patients can expect from our Gastrointestinal & Neuroendocrine Tumors Multidisciplinary Team:
  • An initial consultation visit with an expert  within 3-7 business days
  • A passionate, caring, highly focused team, giving you the best chance of success.
  • A collaborative approach that considers all available treatment options, including clinical trials, for your specific type of cancer.
  • A carefully constructed treatment plan designed to achieve the best possible outcome.
  • Respectful, compassionate care that is responsive to your and family’s emotional needs and lifestyle.
  • Proactive, timely communication with you and your loved ones, and your personal physician.

Meet Our Gastrointestinal & Neuroendocrine Tumors Multidisciplinary Team

Team Leader
Philip Agop Philip, M.D., Ph.D., FRCP, Medical Oncology

Vainutis Vaitkevicius, M.D.

Medical Oncology
Hemchandra Mahaseth M.D.
Anthony Shields, M.D., Ph.D.

Radiation Oncologists
Jordan Maier, M.D.

Hussein Aoun, M.D.
Jeffrey Critchfield, M.D.
Peter Littrup, M.D.
Michael Petrich, M.D.
Garrett Walworth, M.D.

Surgical Oncology
Frank Baciewicz, Jr., M.D.
Steve Kim, M.D.
Donald Weaver, M.D.

Genetic Counselors
Michael S. Simon, M.D., MPH, Director, Genetic Counseling

Vinod B. Shidham, M.D.

Appointment Information 

To schedule an appointment with the Karmanos Gastrointestinal & Endocrine Tumors Oncology Team, call 1-800-KARMANOS (1-800-527-6266) or request an appointment online.

© 2014 Karmanos Cancer Institute Pencil
The Barbara Ann Karmanos Cancer Center is accredited by The Joint Commission.
If members of the public have any quality-of-care or safety concerns, they may notify The Joint Commission at 630-792-5800.