Cancer Screening with Prof. Dr Giovanni Leonetti | 27 February 2024

Gastric or stomach cancer affects the lining of the stomach and is generally asymptomatic in the early stages. Colorectal cancer, as the name suggests, originates in the colon or rectum, and like gastric cancer, this, too, is asymptomatic in the beginning. Both cancers can be insidious, so it is necessary to highlight the crucial need for efficient screening programs.

 

Colorectal and gastric cancer prevention generally entails frequent screenings, early identification, and excision of any precancerous lesions. Gastric cancer screening is appropriate every year after age 70, every 2 to 3 years for those between 60-69 and every 4 years for those 50-59. Younger people can opt for a screening every 5 years or more. As for Colorectal cancer, screening for average-risk adults should begin at the age of 45 and continue until the age of 75 and should be done every 10 years.

 

WHAT ARE THE SYMPTOMS

In the early stages of both gastric and colorectal cancer, there may not be any detectable symptoms. Other mild symptoms that can arise, such as feeling fullness, stomach pain, and fatigue, can be related to other less severe conditions, so it is essential to contact a specialised doctor if any unusual symptoms arise.

 

There are, however, symptoms that can suggest the beginning of gastric cancer and that indicate that a visit to a gastroenterologist is necessary. These symptoms are:

  • Unexplained weight loss
  • Nausea and vomiting
  • Tarry stool
  • Difficulty swallowing
  • Loss of appetite

 

Symptoms of colorectal cancer that also require further investigation are:

  • Changes in bowel movements
  • Fatigue
  • Unexplained weight loss
  • Blood in stool

 

DIAGNOSIS

To diagnose the presence of gastric cancer, the specialised doctor can prescribe a few diagnostic tests, such as:

  • Endoscopy: A small flexible tube is inserted through the mouth to examine the stomach and better view its lining
  • Imaging testing: scans that include CAT, PET or MRIs can be used to examine the extent of the cancer
  • Biopsy: removal of a small tissue sample to be sent for testing in order to confirm or exclude cancer

 

For colorectal cancer, the diagnostic procedures that can be used are:

  • Colonoscopy: a small flexible tube is inserted to view better the colon and rectum, which is a highly effective screening method
  • Imaging testing: CT colonography, MRI or a barium enema to visualise the colon
  • Biopsy: removal of suspicious tissue to be sent for testing

 

CAUSES

The actual causes of gastric cancer and colorectal cancer are not yet wholly defined. However, some risk factors can interfere with their occurrence, therefore, it can be helpful to understand what might contribute to its development.

  • Helicobacter pylori infections
  • Smoking
  • Obesity

 

For colorectal cancer, these factors can be:

  • Age
  • Family history
  • Obesity
  • Inflammatory bowel diseases such as Crohn’s disease or ulcerative colitis can increase the risk of insurgence
  • Family history

 

PREVENTION

Unfortunately, there are no fool-proof preventative measures for both types of cancers. Maintaining a healthy diet, avoiding consuming large amounts of red, processed meats while increasing the intake of antioxidant-rich foods, such as fruits and vegetables, and having regular check-ups through preventative screenings can all contribute to the reduction of occurrence. If someone in your family has had gastric or colorectal cancer, and if you are in the age range where these types of cancers generally occur, preventative screening is necessary for early detection. Screenings play a critical role in detecting abnormalities before they can proceed into cancer and will subsequently enhance the effectiveness of any treatments considered.

 

If you’d like to learn more about gastric and colon cancer screening in Dubai, schedule an appointment with Prof. Dr. Giovanni Leonetti, our gastroenterologist, at Cornerstone Clinic in Grosvenor House, Dubai.

 

27 February 2024