Colon, Rectum and Anus

Question 1

25 cm scope

Answer 1

proctoscope

Question 2

60 cm scope

Answer 2

sigmoidscope

Question 3

true or false: standard CT scan is sensitive for detection of intraluminal lesions

Answer 3

false

Question 4

imaging for evaluation of pelvic sidewall

Answer 4

MRI

Question 5

most common type of polyp
A. hyperplastic
B. inflammatory
C. hamartoma
D. neoplastic

Answer 5

hyperplastic polyp

Question 6

GI polyposis + alopecia + cutaneous pigmentation + atrophy of fingernails and toenails

Answer 6

Cronkite-Canada syndrome

Question 7

facial trichilemmomas + breast cancer + thyroid cancer + GI polyps

Answer 7

Cowden syndrome

Question 8

most common type of neoplastic polyps

Answer 8

tubular adenomas

Question 9

neoplastic polyps with highest risk of cancer

Answer 9

villous adenoma

Question 10

transforms normal epithelium to dysplastic epithelium

Answer 10

APC

Question 11

transforms adenoma to carcinoma

Answer 11

p53

Question 12

FAP: mandibular osteomas

Answer 12

Garnder’s syndrome

Question 13

FAP: CNS tumors

Answer 13

Turcot’s syndrome

Question 14

Screening for HNPCC

Answer 14

yearly
beginning at either age 20 or 25 years or 10 years than the youngest age at diagnosis in the family, whichever comes first

Question 15

Screening for familial colorectal cancer

Answer 15

every 5 years

beginning at age 40 years or beginning 10 years before the age of the earliest diagnosed patient in in the pedigree

Question 16

cut-off for APR

Answer 16

< 5 cm from anal verge

Question 17

diagnosis of carcinoid

Answer 17

24-hour 5-HIAA collection

Question 18

Most common fistual-in-ano

Answer 18

Intersphincteric

Question 19

Which of the following is important in maintaining the integrity of the colonic mucosa?
A. short-chain fatty acids
B. alanine
C. medium-chain fatty acids
D. glutamine

Answer 19

short-chain fatty acids

Question 20

True or false: anal epidermoid carcinoma is treated primarily with surgery

Answer 20

chemoradiation