Diverticular Disease (Diverticulosis and Diverticulitis) Flashcards
Diverticulosis ETIOLOGY?
Development of diverticula is associated with increased pressure in the bowel and
bowel wall weakness;
commonly seen in people > 60 years;
associated with low-fiber diet
Diverticulitis ETIOLOGY?
Caused by inflammation of diverticula, usually by impacted fecal material
Diverticula gross fx?
blind pouches leading off the alimentary tract that communicate with gut
lumen;
most commonly false (pulsion) diverticula: resulting from herniation of mucosa through defects in muscular layer;
less commonly true (traction) diverticula: consisting of mucosa, muscularis,
and serosa
Diverticula histo fx?
Atrophic mucosa with thin muscularis propria
What happens in Diverticulosis?
Presence of multiple diverticula most commonly in the sigmoid colon
What happens in Diverticulitis?
Inflammation of diverticula with edema
Diverticulosis clinical signs?
Usually asymptomatic,
but can present with:
- vague abdominal discomfort
- frank blood in the stool with no leukocytes or epithelial cells
Diverticulitis clinical signs?
Presents with:
fever,
a chronic colicky LLQ abdominal pain,
and possibly bright red blood in the stool;
Diverticulitis complications?
perforation,
abscess formation,
peritonitis
bowel stenosis
Diverticulosis treatment?
High-fiber diet; psyllium fiber laxatives
Diverticulitis treatment?
Antibiotics;
high-fiber diet;
consider colonic resection if multiple episodes of diverticulitis occur