GI16

Question 1

What is the cause of appendicitis in adults?

Answer 1

Obstruction by fecalith

Question 2

What is the cause of appendicitis in children?

Answer 2

Lymphoid hyperplasia (Post-viral)

Question 3

What is a diverticulum?

Answer 3

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

Question 4

What is the most common site for diverticulum?

Answer 4

Sigmoid colon

Question 5

Define “True” diverticulum.

Answer 5

All 3 gut wall layers outpouch

Question 6

What is an example of a True diverticulum?

Answer 6

Meckel’s

Question 7

Define “False” diverticulum.

AKA-pseudodiverticulum

Answer 7

Only mucosa and submucosa outpouch

Question 8

What is diverticulosis?

Answer 8

Many false diverticula

• 50% of people > 60 years
• Assymptomatic

Question 9

A diet low in what, could cause diverticulosis?

Answer 9

Fiber

Question 10

What are the S/S of diverticulitis?

Answer 10

LLQ
Fever
Leukocytosis

*sometimes called “left-sided appendicitis - similar presentation

Question 11

Is Zenker’s diverticulum a True or False diverticulum?

Answer 11

False

Question 12

What is a Zenker’s diverticulum?

Answer 12

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

Question 13

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

Answer 13

Halitosis (d/t trapped food)
Dysphagia
Obstruction

Question 14

Where does intussusception commonly occur?

Answer 14

Ileocecal junction

Question 15

What can intussusception cause?

Answer 15

“Current Jelly” stools

Compromise blood supply

Question 16

Most cases of intussusception are in what population?

Answer 16

Children

• Idiopathic
• Viral-Adenovirus

Question 17

What is a volvulus?

Answer 17

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

*more common in Elderly

Question 18

Where may a volvulus occur?

Answer 18

cecum and sigmoid colon

-redundant mesentary