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Related Concept Videos

Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

4.4K
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...
4.4K
Appendicitis01:19

Appendicitis

29
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...
29
Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

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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...
936
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

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Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
478
Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

2.1K
Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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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...
893

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Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
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The normal appendix on CT: does size matter?

Inneke Willekens1, Els Peeters2, Michel De Maeseneer3

  • 1In vivo Cellular and Molecular Imaging (ICMI) - Vrije Universiteit Brussel, Department of Radiology - UZ Brussel, Brussels, Belgium.

Plos One
|May 8, 2014
PubMed
Summary
This summary is machine-generated.

Most normal appendices are visualized on multislice CT scans. The maximal outer diameter of a normal appendix can overlap with diagnostic criteria for appendicitis, highlighting the importance of careful evaluation.

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Area of Science:

  • Radiology
  • Gastrointestinal Imaging
  • Anatomy

Background:

  • Accurate visualization and measurement of the normal appendix are crucial for diagnosing appendicitis.
  • Computed tomography (CT) is a primary imaging modality for evaluating abdominal pain.

Purpose of the Study:

  • To determine the frequency of normal appendix visualization and its measurements on CT.
  • To correlate Body Mass Index (BMI) and gender with appendix visualization.
  • To examine the relationship between age, gender, body length, and appendiceal length.

Main Methods:

  • Retrospective review of 186 abdominal CT scans in patients without suspected appendicitis.
  • Recorded frequency of visualization and measurements (diameter, wall thickness, length, content, base/tip location) of normal appendices.

Main Results:

  • Normal appendices were visualized in 76% of cases with high accuracy (82%).
  • Mean maximal outer diameter was 8.19 mm, mean length 81.11 mm, and mean wall thickness 2.22 mm.
  • Men had significantly longer appendices than women; no significant correlation found between BMI and visualization.

Conclusions:

  • Multislice CT with intravenous contrast effectively visualizes most normal appendices.
  • The maximal outer diameter of the normal appendix overlaps with CT criteria for appendicitis, necessitating careful interpretation.