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Flashcards in GI16 Deck (18):
1

What is the cause of appendicitis in adults?

Obstruction by fecalith

2

What is the cause of appendicitis in children?

Lymphoid hyperplasia (Post-viral)

3

What is a diverticulum?

Blind pouch protruding from the alimentary tract that communicates with the lumen of the gut

4

What is the most common site for diverticulum?

Sigmoid colon

5

Define "True" diverticulum.

All 3 gut wall layers outpouch

6

What is an example of a True diverticulum?

Meckel's

7

Define "False" diverticulum.
(AKA-pseudodiverticulum)

Only mucosa and submucosa outpouch

8

What is diverticulosis?

Many false diverticula

-50% of people > 60 years
-Assymptomatic

9

A diet low in what, could cause diverticulosis?

Fiber

10

What are the S/S of diverticulitis?

LLQ
Fever
Leukocytosis

*sometimes called "left-sided appendicitis - similar presentation

11

Is Zenker's diverticulum a True or False diverticulum?

False

12

What is a Zenker's diverticulum?

Herniation of mucosal tissue at Killian's triangle between the thyropharyngeal and cricopharyngeal parts of the inferior pharyngeal constrictor

13

What are the Presenting symptoms of a Zenker's diverticulum?

Halitosis (d/t trapped food)
Dysphagia
Obstruction

14

Where does intussusception commonly occur?

Ileocecal junction

15

What can intussusception cause?

"Current Jelly" stools
Compromise blood supply

16

Most cases of intussusception are in what population?

Children
-Idiopathic
-Viral-Adenovirus

17

What is a volvulus?

Twisting of portion of bowl around its mesentary
-Leads to obstruction and infarction

*more common in Elderly

18

Where may a volvulus occur?

cecum and sigmoid colon
-redundant mesentary