2.1.2 Infections of the GI Tract Flashcards
What is this an image of?
Primary herpes simplex - lesion on the gums
What is this an image of?
Giardiasis - block absorption of water
How is campylobacter jejuni transmitted?
Transmitted orally by milk, water or food
What is the most common cause of clinical esophagitis?
Gastro-esophageal reflux disease
What is this an image of?
Pseudomembranous colitis
Dirty yellow membrane
What is this an image of?
Kaposi Sarcoma
What are these an image of?
Giardiasis - cysts
What is the pathophysiology associated with Shigellosis?
Invasive organism is taken up by M or epithelial cells; toxin proliferates intracellulary, escapes through lamina propria is phagocytosed by macrophages and causes apoptosis
What are the characteristics of entero-hemorrhagic E. coli?
What is thought to be the cause of Kaposi Sarcoma?
Herpes Virus
Esophagitis, is usually only due to infection in immunocompromised patients. Who are the culprits to think about?
CMV
Herpes Simplex
Candidiasis
What are the typical symptoms of enterocolitis?
Diarrhea and abdominal pain
What are the characteristics of Giardiasis?
What infectious agent is associated with chronic gastritis?
Helicobacter pylori
Who are the main culprits of the enteritis?
Salmonellosis
Shigellosis
Cholera
Campylobacter jejuni has what symptoms?
Most common cause of traveler’s diarrhea
Watery or Severe bloody diarrhead/dysentery
Classically disease of children
What is this an image of?
H pylori
Need silver or dieterle stain
What is this an image of?
Oral thrush (Candidiasis)
Over growth of yeast
Shigellosis causes what of the epithelium?
Necrosis
Shigellosis produces what type of symptoms?
Dysenteric syndrome (invasive)
Pseudomembranes may be seen
What is this an image of?
Herpes simplex infection
Inclusion bodies
What is enterocolitis?
Inflammation or infection of the small intestine
Cholera produces what type of diarrhea?
Osmotic diarrhea
What is this an image of?
Primary Herpes simplex - palate
Vesicular rash on erythematous base
What is this an image of with Hektoen agar?
Salmonellosis
What are the characteristics of enter-invasive E. coli?
What are the characteristics of entero-toxigenic E. coli?
What is this an image of?
Fungal Esophagitis - Candida albicans
pseudohyphae - extension of the yeast body
What is this an image of?
Herpes simplex - Viral esophagitis
What bacteria are associated with bloody diarrhea?
Salmonella and Shigella spp.
What are the characteristics of pseudomembranous colitis?
Also treated with fecal transplant
Also know that C. Diff has to have a toxin screen and not a bacterial culture
What is this an image of?
Typhoidal ulcer in the small intestine
What are the characteristics of entero-aggregative E. coli?
Salmonellosis is a common contaminant of what?
Poultry and dairy products
