Colorectal Cancer

Question 1

Yearly incidence of colorectal adenocarcinoma

Answer 1

93,000 cases

Question 2

Deaths per year

Answer 2

40,000

Question 3

True or false: We have dramatically reduced the number of deaths per year of colorectal cancer.

Answer 3

False; we’ve not reduced mortality

Question 4

What are the risk factors for colorectal cancer?

Answer 4

1) Diet/activity/obesity
2) Smoking
3) Alcohol
4) Race (highest in AA)

Question 5

What is the most important screening method for colorectal cancer?

Answer 5

Colonoscopy

Question 6

What are the two screening methods for colorectal cancer?

Answer 6

1) Stool test

2) Colonoscopy

Question 7

Symptoms of colorectal cancer

Answer 7

1) Change in bowel habits
2) Rectal bleeding/blood in stool
3) Cramping
4) Weakness and fatigue
5) Weight loss

Question 8

Stage in which a small tumor is confined to the inner wall of the colon.

Answer 8

Stage 1

Question 9

What is the survival rate of stage 1 colon cancer?

Answer 9

92%

Question 10

Stage in which a larger tumor is throughout the colon, but not in lymph nodes.

Answer 10

Stage 2

Question 11

Survival rate of stage 2

Answer 11

70%

Question 12

Stage in which colon cancer has spread to lymph nodes.

Answer 12

Stage 3

Question 13

Stage in which colon cancer has metastasized to distant organs (especially the liver)

Answer 13

Stage 4

Question 14

Survival rate of stage 3

Answer 14

60%

Question 15

Survival rate of stage 4

Answer 15

10%

Question 16

Which organ does colon cancer most often metastasize to?

Answer 16

Liver

Question 17

Colon cancer cells grow in _____ that are lined by _____ cells that overlay _______ cells that replenish _____ from the bottom up.

Answer 17

villi; crypt; stem villi