Objective 15: Discuss the Pathologic Changes and Manifestations Associated With Diverticular Disease

Diverticular Disease

A condition involving the development of abnormal pouch-like protrusions called diverticula in the GI tract.

Diverticulum

An abnormal pouch-like outpouching of a hollow organ.

Diverticula

Multiple pouch-like protrusions that develop in the intestinal wall.

Common Location of Diverticula

The sigmoid colon and distal descending colon.

Diverticular Pathogenesis

The mucosal layer herniates through weak areas in the muscular layer of the colonic wall, creating pouches.

Diverticulosis

The presence of diverticula in the colon without associated inflammation or infection.

Diverticulitis

Inflammation or infection of one or more diverticula.

Diverticulosis vs. Diverticulitis

Diverticulosis involves pouches without inflammation, while diverticulitis involves inflamed or infected pouches.

Left Lower Quadrant Pain

The characteristic manifestation of diverticulitis due to inflammation commonly involving the sigmoid colon.

Diverticulitis Manifestations

Left lower quadrant pain, nausea, vomiting, altered bowel habits, constipation, diarrhea, and abdominal bloating.

What is diverticular disease?

A condition involving abnormal pouch-like protrusions called diverticula within the intestinal wall.

What is a diverticulum?

An abnormal pouch-like outpouching of a hollow organ.

Where do diverticula most commonly develop?

In the sigmoid colon and distal descending colon.

How do diverticula develop?

The mucosal layer herniates through weak areas in the muscular layer of the colon.

What are the two major forms of diverticular disease?

Diverticulosis and diverticulitis.

What is diverticulosis?

The presence of diverticula without associated inflammation or infection.

What is diverticulitis?

Inflammation or infection of one or more diverticula.

What is the major difference between diverticulosis and diverticulitis?

Diverticulosis involves noninflamed pouches, while diverticulitis involves inflamed or infected pouches.

Can diverticulosis be asymptomatic?

Yes. Some individuals have diverticula without experiencing symptoms.

What is the characteristic clinical manifestation of diverticulitis?

Left lower quadrant abdominal pain.

Why does diverticulitis commonly cause left lower quadrant pain?

Diverticula frequently develop in the sigmoid colon and distal descending colon.

What other manifestations can occur with diverticulitis?

Nausea, vomiting, constipation, diarrhea, altered bowel habits, and abdominal bloating.

Why can diverticulitis cause nausea and vomiting?

Inflammation can interfere with normal gastrointestinal digestive activity.

What is the main pathological concern with diverticulitis?

Inflammation can damage the affected bowel tissue and potentially produce complications.

Does the presence of diverticula automatically mean a patient has diverticulitis?

No. Diverticulitis requires inflammation or infection of the diverticula.