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Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery.

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Displaying 1-2 out of 2 doctors available

Last Name Initial: C

  1. Johanna L. Chan, M.D.

    Johanna L. Chan, M.D.

    1. Gastroenterologist
    1. Jacksonville, FL
    Areas of focus:

    Colonoscopy, Upper endoscopy, Flexible sigmoidoscopy, Constipation, Gastroesophageal reflux disease, Colon polyps, Gast...rointestinal bleeding, Peptic ulcer, Diarrhea

  2. Robert R. Cima, M.D.

    Robert R. Cima, M.D.

    1. Colon and Rectal Surgeon
    2. General Surgeon
    1. Rochester, MN
    Areas of focus:

    Laparoscopic surgery, Colorectal surgery, Minimally invasive abdominal surgery, Colonoscopy, Colectomy, J-pouch surgery..., Flexible sigmoidoscopy, Transanal endoscopic microsurgery, Colostomy, Robotic ventral hernia repair, Anorectal surgery, Coloanal anastomosis, Ileostomy surgery, Ulcerative colitis, Inflammatory bowel disease, Crohn's disease, Lynch syndrome, Colon cancer, Carcinoid tumor, Familial adenomatous polyposis, Recurrent cancer, Colon polyps, Hemorrhoids, Anal fissure, Diverticulitis, Anal fistula, Fistula, Anorectal disease, Polyposis syndromes, Abscess, Colonic dysmotility

March 05, 2022
  1. Falchuk M. Patient information: Flexible sigmoidoscopy (beyond the basics). https://www.uptodate.com/contents/search. Accessed Sept. 12, 2018.
  2. Flexible sigmoidoscopy. National Institute of Diabetes and Digestive and Kidney Diseases. https://digestive.niddk.nih.gov/ddiseases/pubs/sigmoidoscopy/index.htm. Accessed Sept. 12, 2018.
  3. U.S. Preventive Services Task Force. Screening for colorectal cancer: U.S. Preventive Services Task Force recommendation statement. JAMA. 2016; doi:10.7326/0003-4819-149-9-200811040-00243.
  4. A-Rahim YI, et al. Bowel preparation for colonoscopy and flexible sigmoidoscopy. https://www.uptodate.com/contents/search. Accessed Sept. 12, 2018.
  5. AskMayoExpert. Colorectal cancer screening (adult). Mayo Clinic; 2019.
  6. Qaseem A, et al. Screening for colorectal cancer in asymptomatic average-risk adults: A guidance statement from the American College of Physicians. Annals of Internal Medicine. 2019; doi:10.7326/M19-0642.

Flexible sigmoidoscopy