Shared Flashcard Set

Details

Gastrointestinal
Colorectal Cancer
17
Medical
Graduate
02/05/2010

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Cards

Term
98% of all malignancies in the colon and rectum are of what type?
Definition
Adenocarcinoma
Term
What is the peak age of incidence of colorectal CA?
Definition
60-79yo
Term
There is a direct correlation of eating what to colorectal CA?
Definition
Red meat
Term
Name 4 lifestyle factors that are risk factors for colorectal CA.
Definition
1)Red, processed, or burnt meats 2)Smoking/etoh use 3)Truncal obesity 4)Too little exercise
Term
Name 5 common c/o in a pt presenting w/ colorectal CA.
Definition
Blood in stool, abd pain, change in bowel habits, wt loss, fatigue
Term
X-ray finding of "apple core" or "napkin-ring" suggest colon CA of what area?
Definition
Transverse and descending colon
Term
Pts w/ colorectal CA of the cecum or (R) colon present present w/ what sx?
Definition
Fatigue, palpitations, angina pectoris 2/2 hypochromic, microcytic anemia w/ iron def.
Term
Most colorectal CA arise from what?
Definition
adenomatous polyps
Term
What are the 2 types of adenomatous polyps? Which type is more likely cancerous?
Definition
Pedunculated or sessile. Sessile.
Term
_____ adenomas become malignant >3X more often than _____ adenomas. (histologic classification)
Definition
Villous, tubulovillous.
Term
CA in the rectosigmoid are associated w/ what 3 s/sx?
Definition
Hematochezia, tenesmus, and narrowed stool caliber(pencil-like)
Term
What is the gold standard diagnostic test for colon CA?
Definition
Colonoscopy
Term
What tests can be done when colonoscopy cannot reach the cecum or obstruction won't allow the scope to pass?
Definition
Barium enema or CT colonography
Term
What labs should be monitored in a pt w/ colorectal CA?
Definition
CBC, LFT, carcinoembryonic antigen (CEA)
Term
What are the staging methods used for colorectal CA?
Definition
TNM and Duke's methods (A, B, C, D)
Term
5 yr survival rates are directly correlated w/ the stage of dz at time of ____?
Definition
diagnosis
Term
When is colonoscopy indicated?
Definition
Q 10yrs if >50yo or anytime a flex sig reveals a polyp or tumor
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