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Related Concept Videos

Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Tuberculosis01:23

Tuberculosis

Tuberculosis (TB) remains a significant global health concern, primarily targeting the lungs and spreading through airborne transmission. Infection begins when aerosolized droplet nuclei, expelled by an individual with active TB, are inhaled by another person. These microscopic particles carry Mycobacterium tuberculosis, the causative agent of TB. Upon reaching the alveoli, the bacilli are engulfed by alveolar macrophages. However, due to their specialized lipid-rich cell wall, these pathogens...
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...

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Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
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[Comparative analyses between tuberculids and extrapulmonary tuberculosis - Another face for Mycobacterium

João Cláudio Barroso Pereira1

  • 1Médico do CRA-DIP do Hospital Municipal Nelson de Sá Earp e do Programa de Controle da Tuberculose da SMS-Petrópolis e do Serviço de Atendimento Especializado da SMS-Belford Roxo - Rio de Janeiro-Brasil.

Revista Portuguesa De Pneumologia
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PubMed
Summary

Tuberculids and extrapulmonary tuberculosis are distinct manifestations of Mycobacterium tuberculosis infection. This study differentiates their definitions, pathogenesis, clinical signs, diagnosis, and treatment for improved understanding and patient care.

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Preparation of Mycobacterium tuberculosis Culture Filtrate to Understand TB Pathogenesis
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Preparation of Mycobacterium tuberculosis Culture Filtrate to Understand TB Pathogenesis

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Last Updated: Jul 4, 2026

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
10:04

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates

Published on: September 5, 2017

Preparation of Mycobacterium tuberculosis Culture Filtrate to Understand TB Pathogenesis
07:32

Preparation of Mycobacterium tuberculosis Culture Filtrate to Understand TB Pathogenesis

Published on: March 28, 2025

Area of Science:

  • Dermatology
  • Infectious Diseases
  • Microbiology

Background:

  • Tuberculosis (TB) can present in various forms, including cutaneous manifestations (tuberculids) and extrapulmonary disease.
  • Distinguishing between these presentations is crucial for accurate diagnosis and effective management of Mycobacterium tuberculosis infection.

Purpose of the Study:

  • To compare tuberculids and extrapulmonary tuberculosis, emphasizing their differences.
  • To provide updated information on the pathogenesis and diagnosis of tuberculids.
  • To review the diverse clinical presentations of extrapulmonary tuberculosis.

Main Methods:

  • Comparative analysis of existing literature on tuberculids and extrapulmonary tuberculosis.
  • Review of recent research on the pathogenesis and diagnostic methods for tuberculids.
  • Synthesis of clinical data on various forms of extrapulmonary tuberculosis.

Main Results:

  • Tuberculids and extrapulmonary tuberculosis represent distinct clinical and pathological entities, despite a common etiology.
  • Updated insights into the pathogenesis of tuberculids reveal specific immune responses.
  • Diagnostic challenges and advancements for both conditions are highlighted.

Conclusions:

  • Tuberculids and extrapulmonary tuberculosis are separate manifestations of Mycobacterium tuberculosis infection requiring tailored diagnostic and therapeutic approaches.
  • Further research into the specific pathogenesis of tuberculids can refine diagnostic strategies.