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Dr Dharmesh Dhanani


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What is a Colorectal(Colon) Cancer?

Colorectal cancer occurs when the cells that line the colon or the rectum become abnormal and grow out of control. Because symptoms often do not appear until the cancer has advanced, it is important to have regular colorectal cancer screenings.


  • A change in your bowel habits, including diarrhea or constipation
  • Rectal bleeding or blood in your stool
  • A feeling that your bowel doesn’t empty completely
  • Weakness or fatigue
  • Unexplained weight loss

Why You Should Not Delay Treatment?

Why Dr Dharmesh Dhanani @ Kiran Hospital Surat?

Dr. Dharmesh Dhanani

Consultant - Colon cancer

Laparoscopic Bariatric and Gastro Surgeon - Dr Dharmesh Dhanani

The colon

The colon is an approximately 5- to 6-foot long tube that connects the small intestine to the rectum.The colon which along with the rectum is called the large intestine moves and processes digesting food across your body and down towards the rectum, where it exits the body as stool. There are several parts of the colon, including:

What parts of the body are affected by colorectal cancer?

Ascending colon:

This section is where undigested food begins its journey through the colon. Undigested food moves upwards through this section, where fluid is reabsorbed more efficiently.

Transverse colon:

Moving across the body, the transverse colon takes the food from one side of the body to the other (right to left).

Descending colon:

Once the food has travelled across the top through the transverse colon, it makes its way downward through the descending colon—typically on the left side.

Sigmoid colon:

The final section of the colon, this portion is shaped like an “S” and it is the last stop before the rectum.

Risk Factor

  • Older age – majority older than 50
  • A personal history of colorectal cancer or polyps. 
  • Inflammatory intestinal conditions – ulcerative colitis and Crohn’s disease
  • Inherited syndromes that increase colon cancer risk
  • Family history of colon cancer
  • Low-fiber, high-fat diet
  • A sedentary lifestyle
  • Obesity
  • Smoking
  • Alcohol


  • Colonoscopy
  • CT Scan
  • Blood Test (CEA)


The three primary treatment options are surgery, chemotherapy and radiation.

  • Surgery for early-stage colon cancer
    – Removing polyps during a colonoscopy.
    – Endoscopic mucosal resection.
    – Minimally invasive surgery – using laparoscopic surgery
  • Surgery for invasive colon cancer
    – Partial colectomy
    – Lymph node removal

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