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Related Concept Videos

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 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 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...
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 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...

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Related Experiment Video

Updated: Jun 14, 2026

Three-Dimensional Reconstruction of Orbital Fractures
08:18

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Pictorial essay: Orbital tuberculosis.

Mahender K Narula1, Vikas Chaudhary, Dhiraj Baruah

  • 1Department of Radiodiagnosis, Lady Hardinge Medical College and Associated Smt. Sucheta Kriplani and Kalawati Hospitals, New Delhi - 110 001, India.

The Indian Journal of Radiology & Imaging
|March 31, 2010
PubMed
Summary

Orbital tuberculosis, though rare, can affect orbital tissues and bone. Imaging is key for diagnosis, and all patients in this study responded well to tuberculosis treatment.

Keywords:
Computed tomographylacrimal glandorbital tuberculosis

Related Experiment Videos

Last Updated: Jun 14, 2026

Three-Dimensional Reconstruction of Orbital Fractures
08:18

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Radiology

Background:

  • Orbital tuberculosis is an uncommon manifestation of tuberculosis, even in endemic regions.
  • It can affect orbital soft tissues, lacrimal gland, periosteum, and orbital bones.
  • Potential complications include intracranial and infratemporal fossa extension.

Purpose of the Study:

  • To illustrate the characteristic imaging findings of orbital tuberculosis.
  • To correlate imaging findings with histopathological confirmation.
  • To highlight the treatment response in patients with orbital tuberculosis.

Main Methods:

  • Retrospective review of nine histopathologically confirmed cases of orbital tuberculosis.
  • Analysis of imaging findings (e.g., CT, MRI) in affected patients.
  • Correlation of imaging features with clinical presentation and diagnosis.

Main Results:

  • Orbital tuberculosis presented with diverse imaging findings involving soft tissues, lacrimal gland, and bone.
  • Intracranial or infratemporal fossa extension was observed in some cases.
  • All nine patients demonstrated a positive response to antituberculous therapy.

Conclusions:

  • Orbital tuberculosis, while rare, should be considered in the differential diagnosis of orbital masses and inflammatory conditions.
  • Characteristic imaging findings can aid in the diagnosis of orbital tuberculosis.
  • Antituberculous treatment is effective in managing orbital tuberculosis.