Gastrointestinal System - Small & Large Intestine

Question 1

Inflammatory Bowel Disease defination ?

Answer 1

Chronic condition
resulting from
complex interactions between intestinal microbiota & host immunity
in a genetically pre-disposed individuals t
that leads to
inappropriate mucosal immune activation

Question 2

Crohn d site ?

Answer 2

any area of GI tract

Question 3

Ulcerative colitis site ?

Answer 3

colon
rectum

Question 4

specific sites of crohns disease >

Answer 4

terminal ileum
ileocecal valve
cecum

Question 5

Crohn disease extent ?

Answer 5

transmura;

Question 6

Ulcerative colitis extent >

Answer 6

mucosa & sub-mucosa

Question 7

regional enteritis which one <

Answer 7

crohns disease

Question 8

what is skip lesion?

Answer 8

sharply delineated areas in crohns d
179

Question 9

macro of crohns D ?

Answer 9

179

Question 10

distribution of CD

179

Answer 10

multiple
separate
skip lesions

Question 11

wall of CD ?

Answer 11

All layer - inflamamtion
stricture - fistula - adhesions

Question 12

narrow lumen X ray seen ?

Answer 12

String sign

Question 13

mucosa of lumen feartures ?

Answer 13

serpiginous ulcer
= aphthous ulcer

Question 14

mesenteric fat of macro ?

Answer 14

creeping fat

Question 15

intervening surviving mucosa appearance >

Answer 15

cobblestone appearance

Question 16

hallmark of crohns D >

Answer 16

non-caseating granuloma

Question 17

Micro features of CD ?

Answer 17

179

transmural infiltration
patchy ulceration
epithelial metaplasia
loss of crypt epithelium

Question 18

carcinoid tumor sites ?

Answer 18

appendix
terminal ileum
colon
rectum
lung
stomach
gall bladder
meckels diverticulum

182

Question 19

Acute appendicitis etiology >

Answer 19

small stone like mass of stool = fecalith
gall stone
worms - oxyuriasis vermicularis
any tumor in the opening of appendix - benign polyp

Question 20

Organism of appendix >

Answer 20

yersinia
CMV
enterobious vermicualris
Staphylo
E coli
Klebsilla
proteus

Question 21

why blackish colour <

Answer 21

Gangrene

Question 22

types of acute appendicitis >

Answer 22

early acute A
acute suppurative A
acute gangrenoius A

Question 23

confiramtion of appendictis ?

Answer 23

histopathology

Question 24

macro of acute gangrenous appendictis >

Answer 24

swollen
distended
serosal covering - reddened
cut section - lumen filled with pus
mucosa shows - ulceration

Question 25

carcinoid tumor site ?

Answer 25

tip of appendix

Question 25

Micro of appendictis >

Answer 25

infiltration of acute inflammatory cells - neutrophilic leukocytosis - throughout the mucosa sub-mucosa and muscularis propria gap between muscle fiber - edema

Question 26

complications of Acute G A ?

Answer 26

Appendicular lump A abscess gangrene of appendix 'perforation peritonitis pyelonephritis liver abscess pelvic abscess subphrenic abscess bacteraemia

Question 26

why neutrophil more in muscularis mucosa <

Answer 26

rich vascular supply faciliate N migration

Question 26

most common ?

Answer 26

neuroendocrine / carcinoid tumor

Question 27

carcinoma of appendix >

Answer 27

Carcinoid tumor adenoma adenocarcinoma mucinous cystadenoma m cystadenocarcinoma

Question 27

other sites of carcinoid tumor ?

Answer 27

lung stomach intestine

Question 28

Neuroendocrine tumor arise from where??

Answer 28

neuroendocrine cells enterochromaffin cells argentafin cells

Question 29

Stain of carcinoid tumor ?

Answer 29

silver stain -------- black

Question 30

why gangrene in AGA ?

Answer 30

vascular compression G sudden ischemia + inflamamtion

Question 31

fecalith what ><

Answer 31

stone like mass of stool 186

Question 32

what is polyp ?

Answer 32

tumourous mass that protrudes into the lumen of the gut

Question 33

non-neoplastic intestinal polyp ?

Answer 33

hyperplastic inflammatory hamartomatous -juvenile -peutz jeghers polyp

Question 34

neoplastic polyp ?

Answer 34

tubular adenoma tubulovillous adenoma villous adenoma sessile serrated adenoma 185

Question 35

CD vs UC ??????????????

Answer 35

181

Question 36

No skip lesions seen in ?

Answer 36

UC

Question 37

what is pseudomyxoma peritoneii ?

Answer 37

a mucus secreting appendicular carcinoma / ovarian carcinoma may fill the peritoneal cavity with gelatinous neoplastic mass

Question 38

WHich IBD ulcer is deep ?

Answer 38

CD

Question 39

kinfe like ulcer <

Answer 39

CD

Question 40

Toxic megacolon present >

Answer 40

UC

Question 41

CD vs Coeliac D ? 176

Answer 41

CD = inflammatory + deep + transmural + medication + surgery coelaic D = autoimmune + mucosa of SI + gluten free diet

Question 41

maximum malignant potential polyp which one ?

Answer 41

villous adenoma

Question 42

GIST defination ?

Answer 42

mesenchymal tumor derived from the intestinal cells of cajal / pacemaker cells of the GI muscularis propria 165

Question 43

Macro of UC ?

Answer 43

continuous involvement no skip lesions mucosa shows - linaer + superficial ulcer apperance of pesudopolyp tips of this polyp fuse ---- mucosal bridges

Question 44

UC or CD which one is more prone to malignancy ?

Answer 44

UC

Question 45

GIST ??

Answer 45

Gastrointestinal stormal tumor

Question 46

why no stricture in UC >

Answer 46

not transmural serosal surface normal