Colonoscopy with Tumor Resection

Maher A. Abbas, MD
Compassion, Excellence, Integrity

Diplomate, American Board of Surgery

Diplomate, American Board of Colon and Rectal Surgery

Fellow, American College of Surgeons

Fellow, American Society of Colon and Rectal Surgeons

Honorary Fellow, Philippine Society of Colon and Rectal Surgeons

Honorary Member, Surgical Section Serbian Medical Association

“The best interest of the patient is the only interest to be considered…”W.J. Mayo, MD (Founder of the Mayo Clinic)


Dr. Maher Abbas is an American Board Certified Colon and Rectal Surgeon who performs the latest and most advanced procedures to treat conditions affecting the small intestine, colon, rectum, and anus.  He is a leader in minimally invasive and endoscopic surgery. With over 18,000 operations and procedures experience, he provides state of the art treatment to his patients.


What is colonoscopy with tumor resection?

Colonoscopy with tumor resection entails the removal of large abnormal growth inside the colon or rectal wall without the need for surgery [Figure 1].  A thin flexible tube (with a tiny video camera at the tip) is advanced through the anus to the area of the tumor.  Endoscopic mucosal resection (EMR) and endoscopic submucosal resection (ESD) are advanced endoscopic techniques for tumor removal [Figure 2].  The removed tumor is analyzed by a pathologist (a laboratory doctor using specialized microscopy techniques).

Figure 1 – A rectal tumor

Figure 2 – Tumor completely removed by Dr. Maher Abbas

Who should have a colonoscopy with tumor resection?

Large polyps and tumors are abnormal growth of the lining surface of the colon and rectum.  Most of these lesions are either precancerous or early stage cancer.  In most hospitals around the world, patients with large polyps and tumors are sent for surgery.  However, in expert hands these growths can be removed with colonoscopy and specialized techniques without the need for surgery.  Seek a second opinion to know your option and see if you can avoid surgery.  Dr. Maher Abbas offers all endoscopic resection techniques using state of the art technology.


How is the procedure done?

The procedure is explained to you the day you meet Dr. Maher Abbas for the consultation.  A cleansing bowel preparation is prescribed.  The bowel preparation is done at home the day before the procedure.

The procedure is performed in the endoscopy suite.  It can take up to 1 ½ hours depending on the size and location of the tumor.  In select cases, Dr. Maher Abbas performs the procedure in the operating room using the Laparoendoscopic technique (endoscopy combined with laparoscopy).  It is usually performed with sedative medications.  You do not feel or remember much of the procedure.  Dr. Maher Abbas uses state of the art sedation equipment to ensure you have a pleasant experience [Figure 3].

A full report and images of the procedure are provided to you with recommendations for when to have your next colonoscopy.  For most patients, the procedure is performed on an outpatient basis and you go home after the procedure.  A short hospital stay is recommended for some patients.  Normal activities are usually resumed the day after the procedure unless instructed otherwise by Dr. Maher Abbas.

Figure 3 – Target controlled infusion [TCI] technology is used for optimal and safe sedation

Is there a risk with colonoscopy with tumor resection?

Colonoscopy is a safe procedure and Dr. Maher Abbas has performed thousands of endoscopic procedures.  Minor risks include transient dizziness or nausea related to the medications, abdominal bloating and gas.  A complication such as bleeding or perforation, a hole in the colon, is rare.  Dr. Maher Abbas uses metal clips in some cases to minimize these risks [Figure 4].  An additional endoscopic procedure or an operation may be needed.

Figure 4 – Metal clips are used to minimize risks of the procedure

If you would like to schedule a consultation with Dr. Maher Abbas for colonoscopy with tumor resection, click here!

Kindly bring to your consultation all outside records of prior colonoscopy, pictures of polyps, and pathology reports.


Contact Us

    Preferred location for appointment
    King’s College Hospital London, DubaiAl-Zahra Hospital, DubaiNo location preference

    Appointment details
    Need urgent appointment (within 24-72 hours)Need routine appointmentRequest virtual online consultation (international patients only)