Quiz 4 sm and lg bowel

Question 1

1 cause of gastroenteritis in all age groups?

Answer 1

Norwalk virus

Question 2

1 cause of gastroenteritis/severe diarrhea in pediatrics?

Answer 2

Rotavirus

Question 3

type of food associated with staph aureus?

Answer 3

potatoe salad

Question 4

type of food associated with B cereus?

Answer 4

rice and chicken

Question 5

type of food associated with vibrio cholera?

Answer 5

salt water crabs and shrimp

Question 6

type of food associated with c botulinum

Answer 6

canned

Question 7

what is associated with c dificile?

Answer 7

antibiotics

Question 8

What is #1 cause of bloody diarrhea?

Answer 8

campilobacter jejuni

Question 9

Do you need a large or small inoculation to get shigella?

Answer 9

small

Question 10

What does necrotizing enterocolitis target in infants and what is the bug?

Answer 10

targets ileocecal valve

pseudamonas

Question 11

What does enterocolitis caused by c dificile lead to?

Answer 11

pseudomembranous enterocolitis

Question 12

what is sequelae of c dificile enterocolitis?

Answer 12

toxic megacolon

Question 13

what is most common location for ischemic colitis?

- 2nd most common location?

Answer 13

splenic flexure because it is between two major arteries

- transverse colon

Question 14

1 cause of food poisoning in US?

Answer 14

Norovirus

Question 15

2 cause of food poisoning in US?

Answer 15

salmonella

Question 16

histology of a leiomyoma

Answer 16

nests of elongated spindles and cigar shaped nuclei

Question 17

peutz-jeghers syndrome

Answer 17

• autosomal dominant disorder
• mucocutaneous hyperpigmentation
• benign GI hamartomas

Question 18

where are polyps found in PJ syndrome?

Answer 18

small bowel (possibly stomach or large bowel)

Question 19

What is histology of Pj syndrome?

Answer 19

frond-like appearance
stromal smooth muscle core
covered by acinar glands 
normal mucosa
no nuclear atypia

Question 20

What are the benign small bowel tumors?

Answer 20

hyperplastic polyp
adenoma
leiomyoma
lipoma
hamartoma

Question 21

What two diseases are hamartomas associated with?

Answer 21

PJ

jeuvenille polpyosis

Question 22

most common type of small bowel malignancy

Answer 22

adenocarcinoma

Question 23

Carcinoid tumor hist

Answer 23

neuroendocrine cells
soccer ball appearance
secrete serotonin

Question 24

adenomatous polyp

Answer 24

tubular adenoma
rounded neoplastic gland
irregular glands
darker crowded nuclei

Question 25

What can become adenocarcinoma?

Answer 25

tubumlar/adenomatous polyp
villous adenoma
juvenile polyposis

Question 26

Villous adenoma

Answer 26

sessile
larger/longer
ruffened surface
cauliflower appearance
dysplastic epithelium
more likely to have cancer

Question 27

Juvenile polyposis syndrome

Answer 27

multiple polyps in GI
mostly hamartomas
increased risk of adenocarcinoma

Question 28

familial adenomatous polyposis

Answer 28

inherited condition
hundreds to thousands of polyps in epithelium of large intestine
can turn into colon cancer if not treated

Question 29

What is the term for combination of polyposis, osteomas, and sebaceous cysts?

Answer 29

Gardners syndrome

Question 30

leiomyosarcoma

Answer 30

malignant tumor
greater cell density
more mitotic figures

Question 31

exotoxin

Answer 31

secreted before or during lysis by gm- or gm+

destroyed by heat

Question 32

enterotoxin

Answer 32

encoded exotoxin produced and secreted by bacteria
not destroyed by heat
-c botulinum
-corynebacterium diphtheria
-e. coli 0157:H7
-vibrio cholera
-staph aureus

Question 33

Gm- endotoxib

Answer 33

• campylobacter jejunae
• salmonella
• shigella
• e. colie 0157:H7