Health concern on your mind?
See what your medical symptoms could mean, and learn about possible conditions.
WebMD Pain Coach
Find Information About:
Drugs & Supplements
Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.
Drug Basics & Safety
Having trouble identifying your pills?
Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.
Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.
WebMD Mobile Drug Information App
WebMD cuts through the hype to reveal the best kept secrets for healthy hair.
Living Healthy Centers
Diet, Food & Fitness
Beauty, Balance & Love
WebMD Allergy App for iPhone
Protect yourself and your family by learning which health precautions and vaccines are advised for your destination.
Family and Pregnancy Centers
WebMD Pregnancy App for iPhone
WebMD Health Experts and Community
Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.
WebMD Second Opinion
Got a health question? Get answers provided by leading organizations, doctors, and experts.
The World Health Organization (WHO) classification of tumors of the colon and rectum include the following:
Colorectal Cancer: Finding Help
Want a second opinion or looking for a doctor that specializes in treating colon cancer? WebMD’s Physician Directory can help you find an oncologist in your area.
Tool: Find a Doctor Who Specializes in Colon Cancer
Read the Colorectal Cancer: Finding Help article > >
Intraepithelial neoplasia (dysplasia) associated with chronic inflammatory diseases
Carcinoid (well-differentiated neuroendocrine neoplasm)
Adenocarcinomas account for the vast majority of rectal cancers. Other histologic types of colorectal cancer account for an estimated 2% to 5% of colorectal tumors.
WebMD Public Information from the National Cancer Institute
©2005-2014 WebMD, LLC. All rights reserved.
WebMD does not provide medical advice, diagnosis or treatment. See additional information.