Quiz 4 sm and lg bowel Flashcards Preview

Path III Quizzes > Quiz 4 sm and lg bowel > Flashcards

Flashcards in Quiz 4 sm and lg bowel Deck (33):
1

#1 cause of gastroenteritis in all age groups?

Norwalk virus

2

#1 cause of gastroenteritis/severe diarrhea in pediatrics?

Rotavirus

3

type of food associated with staph aureus?

potatoe salad

4

type of food associated with B cereus?

rice and chicken

5

type of food associated with vibrio cholera?

salt water crabs and shrimp

6

type of food associated with c botulinum

canned

7

what is associated with c dificile?

antibiotics

8

What is #1 cause of bloody diarrhea?

campilobacter jejuni

9

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

small

10

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

targets ileocecal valve
pseudamonas

11

What does enterocolitis caused by c dificile lead to?

pseudomembranous enterocolitis

12

what is sequelae of c dificile enterocolitis?

toxic megacolon

13

what is most common location for ischemic colitis?
- 2nd most common location?

splenic flexure because it is between two major arteries
- transverse colon

14

#1 cause of food poisoning in US?

Norovirus

15

#2 cause of food poisoning in US?

salmonella

16

histology of a leiomyoma

nests of elongated spindles and cigar shaped nuclei

17

peutz-jeghers syndrome

- autosomal dominant disorder
- mucocutaneous hyperpigmentation
- benign GI hamartomas

18

where are polyps found in PJ syndrome?

small bowel (possibly stomach or large bowel)

19

What is histology of Pj syndrome?

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

20

What are the benign small bowel tumors?

hyperplastic polyp
adenoma
leiomyoma
lipoma
hamartoma

21

What two diseases are hamartomas associated with?

PJ
jeuvenille polpyosis

22

most common type of small bowel malignancy

adenocarcinoma

23

Carcinoid tumor hist

neuroendocrine cells
soccer ball appearance
secrete serotonin

24

adenomatous polyp

tubular adenoma
rounded neoplastic gland
irregular glands
darker crowded nuclei

25

What can become adenocarcinoma?

tubumlar/adenomatous polyp
villous adenoma
juvenile polyposis

26

Villous adenoma

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

27

Juvenile polyposis syndrome

multiple polyps in GI
mostly hamartomas
increased risk of adenocarcinoma

28

familial adenomatous polyposis

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

29

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

Gardners syndrome

30

leiomyosarcoma

malignant tumor
greater cell density
more mitotic figures

31

exotoxin

secreted before or during lysis by gm- or gm+
destroyed by heat

32

enterotoxin

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

33

Gm- endotoxib

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