Acute appendicitis - Symptoms, Causes, Images, and Treatment Options

Diseases

Highlights & Basics

Key Highlights

Acute appendicitis typically presents as acute abdominal pain starting in the mid-abdomen and later localizing to the right lower quadrant.
Associated with fever, anorexia, nausea, vomiting, and elevation of the neutrophil count.
Diagnosis is usually made clinically. If investigation is required, computed tomography scan or ultrasonography may show dilatation of the appendix outer diameter to more than 6 mm.
Definitive treatment is surgical appendectomy. A nonoperative, antibiotic-only approach may be feasible in select patient populations.

Acute appendicitis - intraoperative specimen.

Nasim Ahmed, MBBS, FACS; used with permission

Quick Reference

History & Exam
- Key Factors
- Other Factors
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Diagnostics Tests
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Treatment Options
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Definition

Epidemiology

Etiology

Pathophysiology

Images

Acute appendicitis - intraoperative specimen.
CT abdomen - thickened appendix.

Citations

Key Articles

Di Saverio S, Podda M, De Simone B, et al. Diagnosis and treatment of acute appendicitis: 2020 update of the WSES Jerusalem guidelines. World J Emerg Surg. 2020 Apr 15;15(1):27.[Abstract][Full Text]
American College of Radiology. ACR appropriateness criteria: right lower quadrant pain - suspected appendicitis. 2022 [internet publication].[Full Text]
Sartelli M, Chichom-Mefire A, Labricciosa FM, et al. The management of intra-abdominal infections from a global perspective: 2017 WSES guidelines for management of intra-abdominal infections. World J Emerg Surg. 2017 Jul 10;12:29.[Abstract][Full Text]

Referenced Articles

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