U.S. doctors online nowAsk doctors free
A 36-year-old member asked:

What areas does colorectal cancer usually affect before metastasis?

2 doctor answers2 doctors weighed in
Dr. Gurmukh Singh
Pathology 50 years experience
Unclear question: Before metastases, colorectal cancer affects the mucosa and wall of large intestine. Tumors on the left side of the colon are more common than on the right side. See this site for more info. http://www.ncbi.nlm.nih.gov/pubmedhealth/pmh0001308/.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Andrew Turrisi
Radiation Oncology 48 years experience
Invades thru: The bowel muscle, and affects regional lymph nodes.
Created for people with ongoing healthcare needs but benefits everyone.

Similar questions

A 45-year-old member asked:

How is colorectal cancer diagnosed usually?

2 doctor answers3 doctors weighed in
Dr. Gurmukh Singh
Pathology 50 years experience
Colonoscopy, imaging: And biopsy. A lesion may be detected on colonscopy or barium enema or the more recent ct scans. The lesion is biopsied and the tissue examined by a pathologist to make the diagnosis. Colon cancer may be suspected if there is blood in stool, either obvious or occult.
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:

Where does colorectal cancer affect before metastasis?

1 doctor answer1 doctor weighed in
Dr. Myron Arlen
Surgical Oncology 65 years experience
Mesenteric nodes: As colon cancer grows from premalignant cells in the mucosa of bowel it invades the muscularis reaching serosal outer surface (Dukes B). It then invades nodes of the mesentery C1 expanding to 4 or more nodes C2 and then along the mesenteric lymphatics to liver. Subpopulations in the primary however can eventually spread directly to lung or bone depending on their surface antigens.
Created for people with ongoing healthcare needs but benefits everyone.
CA
A 35-year-old member asked:

What ages does colorectal cancer affect?

2 doctor answers7 doctors weighed in
Dr. Jeffrey Crespin
Gastroenterology 29 years experience
It varies: Colon cancer can strike from the 20s and beyond, but is much more common in people in their 50s to 70s hence the recommendations to not routinely do colonoscopies in people before the age of 50. Colon cancer that presents before 60 is often genetic whereas after 60 is more likely due to environmental factors like smoking and red meat.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 42-year-old member asked:
Symptoms of prostate cancer metastasis?
2 doctor answers9 doctors weighed in
A 30-year-old member asked:
Does endometrial cancer metastasis tend to show patterns?
2 doctor answers3 doctors weighed in
A 32-year-old member asked:
What is the prognosis for cancer metastasis into the bones?
1 doctor answer1 doctor weighed in
A 36-year-old member asked:
What are the most advanced tests for diagnosis of metastasis of a primary prostate cancer?
3 doctor answers6 doctors weighed in
A 38-year-old member asked:
How does metastasis spread from the pancreas if somebody has pancreatic cancer?
3 doctor answers9 doctors weighed in
Last updated Mar 12, 2020

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.