MedicineNet.com
About Us | Privacy Policy | Site Map
February 9, 2010
MedicineNet home Picture Slideshows Diseases and conditions Symptoms and signs Procedures and tests Medications Picture Image Collection MedTerms medical dictionary Pet Health
Font Size
A
A
A


Colon Cancer
(Colorectal Cancer)

Medical Author: Dennis Lee, MD
Medical Reviewing Editor: Jay Marks, MD

Patient to Patient

A Surprising Colon Cancer

From diagnosis to treatment, a fighting tale.

An Unexpected Challenge
Wed., Dec. 7, 2005

Patti faces colon cancerAt the time, I had no idea anything at all was wrong. I just knew it was time for a colonoscopy. In fact it was past time, since I was 61 years old.

I don't remember the procedure itself. What I do remember is waking up at home and Kim, my husband, telling me that they'd found a tumor at the very far end of my colon and that the doctor wanted to speak to me when I was awake and ready to talk. I called the doc right away. The doctor told me that he was totally surprised when he found the tumor, that it was being biopsied, and that he asked them to rush the results.

No matter what the outcome of the biopsy; the tumor had to be removed, the doc said. He asked who I wanted to do the surgery. I somehow remembered that a lady I play golf with is a nurse for a gastro practice. I called her and found out who she'd ask for if she needed colon surgery. Once I got a name, I called my gastroenterologist back, told him who I wanted, and asked for an appointment.


Patient to Patient

What is cancer?

Cancer is a group of more than 100 different diseases. They affect the body's basic unit, the cell. Cancer occurs when cells become abnormal and divide without control or order. Like all other organs of the body, the colon and rectum are made up of many types of cells. Normally, cells divide to produce more cells only when the body needs them. This orderly process helps keep us healthy.

If cells keep dividing when new cells are not needed, a mass of tissue forms. This mass of extra tissue, called a growth or tumor, can be benign or malignant.

Benign tumors are not cancer. They can usually be removed and, in most cases, they do not come back. Most important, cells from benign tumors do not spread to other parts of the body. Benign tumors are rarely a threat to life.

Malignant tumors are cancer. Cancer cells can invade and damage tissues and organs near the tumor. Also, cancer cells can break away from a malignant tumor and enter the bloodstream or lymphatic system. This is how cancer spreads from the original (primary) tumor to form new tumors in other parts of the body. The spread of cancer is called metastasis.

When cancer spreads to another part of the body, the new tumor has the same kind of abnormal cells and the same name as the primary tumor. For example, if colon cancer spreads to the liver, the cancer cells in the liver are colon cancer cells. The disease is metastatic colon cancer (it is not liver cancer).

What is cancer of the colon and rectum?

The colon is the part of the digestive system where the waste material is stored. The rectum is the end of the colon adjacent to the anus. Together, they form a long, muscular tube called the large intestine (also known as the large bowel). Tumors of the colon and rectum are growths arising from the inner wall of the large intestine. Benign tumors of the large intestine are called polyps. Malignant tumors of the large intestine are called cancers. Benign polyps do not invade nearby tissue or spread to other parts of the body. Benign polyps can be easily removed during colonoscopy and are not life-threatening. If benign polyps are not removed from the large intestine, they can become malignant (cancerous) over time. Most of the cancers of the large intestine are believed to have developed from polyps. Cancer of the colon and rectum (also referred to as colorectal cancer) can invade and damage adjacent tissues and organs. Cancer cells can also break away and spread to other parts of the body (such as liver and lung) where new tumors form. The spread of colon cancer to distant organs is called metastasis of the colon cancer. Once metastasis has occurred in colorectal cancer, a complete cure of the cancer is unlikely.

Colon cancer (colorectal cancer) picture

Globally, cancer of the colon and rectum is the third leading cause of cancer in males and the fourth leading cause of cancer in females. The frequency of colorectal cancer varies around the world. It is common in the Western world and is rare in Asia and Africa. In countries where the people have adopted western diets, the incidence of colorectal cancer is increasing.



Next: What are the causes of colon cancer? »

Colon Cancer - How Was Diagnosis Established

The MedicineNet physician editors ask:

How was the diagnosis of your colon cancer established?

Comment submissions for this question have ended. Patient Discussions FAQs
See 20 Viewer Comments

View Comments


Printer-Friendly Format  |  Email to a Friend


Suggested Reading by Our Doctors
MedicineNet Doctors
  • bevacizumab-injection, Avastin - Consumer information about the medication BEVACIZUMAB - INJECTION (Avastin), includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug BEVACIZUMAB - INJECTION.
  • Hemoglobin - Read about hemoglobin - the protein molecule in red blood cells. Learn what normal, low, and high level hemoglobin counts mean on MedicineNet.com
  • Abdominal Pain - Learn about abdominal pain (pain in the stomach / abdomen) including causes, symptoms, how abdominal pain is diagnosed, and how abdominal pain is treated.

Latest Medical News


Cancer

Get the latest treatment options.


Are you Depressed? Take the Quiz

Your Guide to Symptoms & Signs: Pinpoint Your Pain



Colon Cancer

What are lymph nodes?

Lymph nodes are an important component of the body's immune system and help in fighting infections.

They are small, soft, round or oval structures that are found throughout the body and are connected to each other in chain-like (lymphatic chains) fashion by channels similar to blood vessels. Each individual lymph node is covered by a capsule made up of connective tissue.

Within the capsule, lymph nodes contain certain kinds of immune cells. These cells are mainly lymphocytes, which produce proteins that capture and fight viruses and other microbes, and macrophages, which destroy and remove the captured material.

Where are the lymph nodes located in the body?

Lymph nodes are located throughout the body. Some are directly under the skin while others are deep inside the body. Even the most superficial (close to the skin) lymph nodes are usually not visible or palpable (felt by touchi...

Read the Swollen Lymph Nodes article »











Health categories:

Slideshows | Diseases & Conditions | Symptoms & Signs | Procedures & Tests | Medications | Image Collection | Medical Dictionary | Pet Health

Popular health centers:

Allergies | Arthritis | Blood Pressure | Cancer | Chronic Pain | Cold & Flu | Diabetes | Digestion | Eyesight | Health & Living | Healthy Kids

Hearing & Ear | Heart | Infectious Disease | Men's Health | Mental Health | News & Views | Pregnancy | Sexual Health | Skin | Women's Health | More...

MedicineNet.com:

About Us | Newsletters | RSS Feeds | Privacy Policy | Site Map | WebMD® | Medscape® | eMedicine® | eMedicineHealth® | RxList®

This website is certified by Health On the Net Foundation. Click to verify. This site complies to the HONcode standard for trustworthy health information:
verify here.

©1996-2010 MedicineNet, Inc. All rights reserved. Notices and Legal Disclaimer.
MedicineNet does not provide medical advice, diagnosis or treatment. See additional information.