2.1.2 Infections of the GI Tract

Question 1

What is this an image of?

Answer 1

Primary herpes simplex - lesion on the gums

Question 2

What is this an image of?

Answer 2

Giardiasis - block absorption of water

Question 3

How is campylobacter jejuni transmitted?

Answer 3

Transmitted orally by milk, water or food

Question 4

What is the most common cause of clinical esophagitis?

Answer 4

Gastro-esophageal reflux disease

Question 5

What is this an image of?

Answer 5

Pseudomembranous colitis

Dirty yellow membrane

Question 6

What is this an image of?

Answer 6

Kaposi Sarcoma

Question 7

What are these an image of?

Answer 7

Giardiasis - cysts

Question 8

What is the pathophysiology associated with Shigellosis?

Answer 8

Invasive organism is taken up by M or epithelial cells; toxin proliferates intracellulary, escapes through lamina propria is phagocytosed by macrophages and causes apoptosis

Question 9

What are the characteristics of entero-hemorrhagic E. coli?

Answer 9

Question 10

What is thought to be the cause of Kaposi Sarcoma?

Answer 10

Herpes Virus

Question 11

Esophagitis, is usually only due to infection in immunocompromised patients. Who are the culprits to think about?

Answer 11

CMV

Herpes Simplex

Candidiasis

Question 12

What are the typical symptoms of enterocolitis?

Answer 12

Diarrhea and abdominal pain

Question 13

What are the characteristics of Giardiasis?

Answer 13

Question 14

What infectious agent is associated with chronic gastritis?

Answer 14

Helicobacter pylori

Question 15

Who are the main culprits of the enteritis?

Answer 15

Salmonellosis

Shigellosis

Cholera

Question 16

Campylobacter jejuni has what symptoms?

Answer 16

Most common cause of traveler’s diarrhea

Watery or Severe bloody diarrhead/dysentery

Classically disease of children

Question 17

What is this an image of?

Answer 17

H pylori

Need silver or dieterle stain

Question 18

What is this an image of?

Answer 18

Oral thrush (Candidiasis)

Over growth of yeast

Question 19

Shigellosis causes what of the epithelium?

Answer 19

Necrosis

Question 20

Shigellosis produces what type of symptoms?

Answer 20

Dysenteric syndrome (invasive)

Pseudomembranes may be seen

Question 21

What is this an image of?

Answer 21

Herpes simplex infection

Inclusion bodies

Question 22

What is enterocolitis?

Answer 22

Inflammation or infection of the small intestine

Question 24

Cholera produces what type of diarrhea?

Answer 24

Osmotic diarrhea

Question 25

What is this an image of?

Answer 25

Primary Herpes simplex - palate Vesicular rash on erythematous base

Question 26

What is this an image of with Hektoen agar?

Answer 26

Salmonellosis

Question 27

What are the characteristics of enter-invasive E. coli?

Answer 27

Question 28

What are the characteristics of entero-toxigenic E. coli?

Answer 28

Question 29

What is this an image of?

Answer 29

Fungal Esophagitis - Candida albicans pseudohyphae - extension of the yeast body

Question 30

What is this an image of?

Answer 30

Herpes simplex - Viral esophagitis

Question 31

What bacteria are associated with bloody diarrhea?

Answer 31

Salmonella and Shigella spp.

Question 32

What are the characteristics of pseudomembranous colitis?

Answer 32

Also treated with fecal transplant Also know that C. Diff has to have a toxin screen and not a bacterial culture

Question 33

What is this an image of?

Answer 33

Typhoidal ulcer in the small intestine

Question 34

What are the characteristics of entero-aggregative E. coli?

Answer 34

Question 35

Salmonellosis is a common contaminant of what?

Answer 35

Poultry and dairy products