Masking update: As of October 16, 2024, masks are required in patient care areas, patient rooms and waiting rooms. 

Colorectal and Other Gastrointestinal Cancers

We are home to experts who treat colorectal and gastric cancers.

Gastrointestinal (GI) cancers are the uncontrolled growth of abnormal cells (cancer) in the digestive tract and other abdominal organs.

These include cancers of the esophagus, gallbladder and biliary tract, liver, pancreas, stomach, small intestine, bowel, colon, rectum and anus.

Colorectal cancer is one of the most common types of cancer in the world. Experts at Mount Sinai Hospital often care for patients with the most complex colorectal cancer.

Our hospital is an internationally recognized centre for surgery of the rectum and colon and our surgeons provide guidance to other surgeons and oncologists right across Canada. Surgery is conducted using advanced laparoscopic, robotic and reconstructive procedures.

In addition to our expertise in colorectal and gastrointestinal cancers, we are home to the Peritoneal Surface Malignancy Program.

What to expect

It is important to get regular checkups and screening if you experience symptoms that concern you.  

Screening for colorectal cancer is widely available in Ontario. Screening options should be discussed with primary care providers.

People with concerning symptoms or a positive result on a fecal immunochemical test (FIT) can be referred to our Colorectal Diagnostic Assessment Program (DAP).

Each cancer is different and requires special treatment.  

If you are referred to our Cancer program, you may undergo additional diagnostic testing. You will likely see a surgeon and/or medical oncologist as part of your care.

Your care team will work with you to develop a care plan that is specific to your cancer. Care plans may include any combination of surgery, chemotherapy, systemic therapy or radiation.

Patients receiving systemic therapy, including chemotherapy, come to the Cancer Care Clinic for treatment. 

Cancers we treat
Clinics and services

Your care team

Learn more about the members of our dedicated health-care team who work together to provide comprehensive care for patients.  

Refer a patient

We accept referrals from health-care providers. Visit our referral criteria for more information.