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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 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...
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...
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...
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...

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Related Experiment Video

Updated: Jun 8, 2026

A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection
10:10

A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection

Published on: October 5, 2015

[Lower lung field tuberculosis].

Alejandra González1, Marcelo Fernández Casares, Matías Baldini

  • 1Servicio de Neumonología, Hospital A. Posadas, Haedo, Buenos Aires, Argentina. alestork@yahoo.com.ar

Medicina
|October 6, 2010
PubMed
Summary
This summary is machine-generated.

Lower lung field tuberculosis (LLFTB) is uncommon but can occur without immunodeficiency. This study found LLFTB often presents with comorbidities and unilateral involvement, requiring suspicion in persistent pneumonias.

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Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
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Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test

Published on: April 9, 2012

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Last Updated: Jun 8, 2026

A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection
10:10

A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection

Published on: October 5, 2015

Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
08:10

Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test

Published on: April 9, 2012

Area of Science:

  • Pulmonology
  • Infectious Diseases
  • Radiology

Background:

  • Tuberculosis (TB) typically affects the upper lung fields.
  • Lower lung field tuberculosis (LLFTB) is infrequent in adults and often linked to immunodeficiency.

Purpose of the Study:

  • To determine the incidence of LLFTB.
  • To compare the characteristics of LLFTB patients with typical pulmonary TB.

Main Methods:

  • Retrospective study of 42 LLFTB patients (2004-2008).
  • Comparison with 84 patients with typical pulmonary TB (control group).
  • Exclusion of HIV-positive patients.

Main Results:

  • LLFTB represented 6% of pulmonary TB cases.
  • LLFTB patients showed significantly more comorbidities, condensation, and unilateral involvement.
  • No significant differences in age, sex, cavities, evolution time, or albumin levels were observed.

Conclusions:

  • LLFTB can occur without significant comorbidities.
  • Suspicion of LLFTB is warranted in persistent pneumonias, irrespective of location.
  • LLFTB is associated with increased hospital admissions.