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Appendicitis

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...

Appendicitis-II: Diagnostic Studies and Management

Appendicitis-II: Diagnostic Studies and Management

Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...

Appendicitis-I: Introduction

Appendicitis-I: Introduction

The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...

Imaging Studies III: Computed Tomography

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

Radiological Investigation I: X-ray and CT

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...

Imaging Studies I: CT and MRI

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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Computed Tomography (CT) scan:
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Updated: May 18, 2026

Multimodality Diagnosis of Mesenteric Ischemia

Multimodality Diagnosis of Mesenteric Ischemia

Published on: July 21, 2023

Alternative diagnoses to suspected appendicitis at CT.

B Dustin Pooler¹, Edward M Lawrence, Perry J Pickhardt

¹Department of Radiology, University of Wisconsin School of Medicine and Public Health, E3/311 Clinical Science Center, 600 Highland Ave, Madison, WI 53792-3252, USA.

|October 2, 2012

Summary

This summary is machine-generated.

Computed tomography (CT) scans for suspected appendicitis often reveal alternative diagnoses in adults. These alternative findings frequently necessitate hospitalization and surgical intervention, highlighting CT

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Area of Science:

Radiology
Abdominal Imaging
Emergency Medicine

Background:

Acute appendicitis is a common surgical emergency.
Computed tomography (CT) is frequently used for diagnosing suspected appendicitis.
Accurate diagnosis is crucial for appropriate patient management.

Purpose of the Study:

To evaluate the frequency and impact of alternative diagnoses identified by CT in adults presenting with symptoms suggestive of acute appendicitis.
To assess the clinical significance of these alternative diagnoses in terms of patient outcomes.

Main Methods:

Retrospective analysis of 1571 adult patients undergoing CT for suspected appendicitis.
Comparison of radiologist diagnoses with ultimate clinical diagnoses.
Statistical analysis using Fisher exact test and Mann-Whitney test.

Main Results:

CT identified a specific diagnosis in 55.2% of patients.
Acute appendicitis was favored in 23.6% of cases.
Alternative diagnoses were suggested in 31.6% of patients, leading to hospitalization in 41.1% and intervention in 22.0%.

Conclusions:

Abdominopelvic CT frequently identifies alternative causes for symptoms in adults with suspected appendicitis.
These alternative diagnoses often require significant medical or surgical management.
CT plays a vital role in guiding treatment for a wide range of abdominal conditions beyond appendicitis.