Colon Flashcards
0
Q
To where does colon cancer tend to metastasize?
A
Regionally via lymphatics. Hematogenous spread tends to follow portal circulation to liver.
1
Q
Who should be screened for colon cancer?
A
Everyone over age 50. If pt has family Hx of colon cancer, begin screening at age 40, or 10 yrs before the age of onset in affected family member.
2
Q
What is a CEA?
A
Carcinoembryonic antigen- not useful for screening, but has prognostic value (>5 ng/mL has worse prognosis) and is useful for recurrence surveillance.
3
Q
Both Crohn’s disease and ulcerative colitis increase risk of colorectal cancer. Which is worse?
A
UC is a greater risk increase.
4
Q
What type of cancer is most CRC?
A
Adenomocarcinoma
