Is adenocarcinoma of the colon aggressive?

Is adenocarcinoma of the colon aggressive?

Adenocarcinoma of the colon is the most common type of colon cancer (malignant tumor). Colon cancers are not alike. Colon cancers have a wide range of behavior from very slow growing cancers with a low risk of causing harm, to cancers that are more aggressive and can spread to other areas of your body.

How fast does adenocarcinoma of the colon grow?

Colon cancer, or cancer that begins in the lower part of the digestive tract, usually forms from a collection of benign (noncancerous) cells called an adenomatous polyp. Most of these polyps will not become malignant (cancerous), but some can slowly turn into cancer over the course of about 10-15 years.

How aggressive is adenocarcinoma?

Adenocarcinoma of the lung (a type of non-small cell lung cancer) is fairly aggressive. Even early diagnosis offers only a 61% chance of survival five years later. That survival rate plummets to only 6% if the cancer has metastasized to distant organs by the time of diagnosis.

Why have a CT scan after colonoscopy?

A CT colonography can help identify potentially cancerous areas in people who cannot have a colonoscopy because of other medical reasons. It's less invasive than a colonoscopy, but you may still need to have colonoscopy or flexible sigmoidoscopy at a later stage so any abnormal areas can be removed or biopsied.

What part of colon are most cancers found?

The sigmoid colon is the most common site for cancer of the colon. Rectal carcinoma is the most common cancer of the lower gastrointestinal tract.

Is colon adenocarcinoma hereditary?

One in 18 individuals (5.5 percent) will develop colon cancer in their lifetime. Of all colon cancer cases, only about 5 to 10 percent are hereditary, linked to gene mutations inherited from one's mother or father.

How long does it take for a colon polyp to grow?

Generally, it's about a 10- to 15-year process, which explains why getting a colonoscopy screening once every 10 years is sufficient for most people.

What is the life expectancy for adenocarcinoma?

• Stage IV lung adenocarcinoma is inoperable and does not usually respond to radiation or chemotherapy. According to the National Cancer Institute, only 17 percent of those diagnosed with Stage IV survive beyond five years; eight to 10 months is the usual prognosis. .

What is the life expectancy of someone with Stage 4 colon cancer?

• Stage IV colon cancer has a relative 5-year survival rate of about 14%. This means that about 14% of people with stage IV colon cancer are likely to still be alive 5 years after they are diagnosed. But you're not a number. No one, including your doctor, can tell you exactly how long you'll live.

How does adenocarcinoma start in the colon and rectum?

• A colon adenocarcinoma begins in the glands that create the mucus to line the colon and rectum. The brain can also develop an adenocarcinoma, often as a result of cancer cells that have...