Flashcards in CH10 - Gastrointestinal Pathology Deck (345)
How does the screening for colorectal carcinoma occur?
via endoscopy and fecal occult blood testing
When does screening for colorectal carcinoma begin?
at 50 years of age
What is the goal for screening for colorectal carcinoma?
To remove adenomatous polyps before carcinoma develops and to detect cancer early (before clinical symptoms arise).
In colorectal carcinoma where can carcinoma develop?
anywhere along entire the length of the colon
In colorectal carcinoma how does left-sided carcinoma usually grow?
as a napkin-ring lesion;
In colorectal carcinoma how does left-sided carcinoma present?
With decreased stool caliber, left lower quadrant pain, and blood-streaked stool
In colorectal carcinoma how does right-sided carcinoma usually grow?
as a raised lesion;
In colorectal carcinoma how does right-sided carcinoma usually present?
with iron deficiency anemia (occult bleeding) and vague pain. All older adults with iron deficiency anemia has colorectal carcinoma until proven otherwise.
What infection is colonic carcinoma associated with?
an increased risk for Streptococcus bovis endocarditis.
What is the T stage for colorectal carcinoma based on?
depth of invasion;
Do tumors limited to the mucosa generally spread?
No they do not spread due to lack of lymphatics in the mucosa
What does the N stage for colorectal carcinoma represent?
spread to regional lymph nodes
What does the M stage for colorectal carcinoma represent?
What does the M stage for colorectal carcinoma most commonly involve?