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Related Concept Videos

Appendicitis-II: Diagnostic Studies and Management01:29

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: Introduction01:22

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...
Appendicitis01:19

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...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
Radiological Investigation I: X-ray and CT01:30

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 III: Computed Tomography01:27

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...

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Related Experiment Video

Updated: Jun 22, 2026

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta
07:12

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

Published on: September 8, 2023

Evaluating routine diagnostic imaging in acute appendicitis.

C Unlü1, S M M de Castro, J B Tuynman

  • 1Department of Surgery and Radiology, Sint Lucas Andreas Hospital, Jan Tooropstraat 164, 1061 AE Amsterdam, The Netherlands. c.unlu@slaz.nl

International Journal of Surgery (London, England)
|June 30, 2009
PubMed
Summary
This summary is machine-generated.

Diagnosing acute appendicitis often doesn't require imaging. Selective imaging is useful when clinical diagnosis is uncertain, with CT scans showing superior accuracy compared to ultrasound for appendicitis.

Related Experiment Videos

Last Updated: Jun 22, 2026

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta
07:12

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

Published on: September 8, 2023

Area of Science:

  • Emergency Medicine
  • Diagnostic Imaging
  • Surgical Conditions

Background:

  • Acute appendicitis is a common surgical emergency.
  • Accurate diagnosis is crucial for timely intervention and minimizing complications.
  • Clinical assessment alone may be insufficient in some cases.

Purpose of the Study:

  • To assess the influence of selective imaging on the clinical management of suspected acute appendicitis.
  • To compare diagnostic accuracy and outcomes between patients managed with and without imaging.

Main Methods:

  • Analysis of 941 consecutive patients presenting with right lower quadrant pain over 2.5 years.
  • Comparison of outcomes for patients treated with selective imaging versus those managed clinically.
  • Evaluation of ultrasound and CT scan performance in diagnosing appendicitis.

Main Results:

  • 69% of patients were diagnosed clinically with 84% accuracy.
  • 31% underwent selective imaging, achieving 71% diagnostic accuracy.
  • CT scan demonstrated high sensitivity (100%) and specificity (95%), while ultrasound had lower sensitivity (59%).

Conclusions:

  • Acute appendicitis can be reliably diagnosed clinically in most cases, leading to high accuracy and low morbidity.
  • Imaging is recommended when clinical diagnosis is uncertain.
  • CT scan or diagnostic laparoscopy are superior to ultrasound for evaluating uncertain cases of appendicitis.