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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 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 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 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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Related Experiment Video

Updated: Jul 14, 2026

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients
03:47

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients

Published on: October 25, 2024

Periorbital tuberculosis.

Apjit Kaur1, Surya Kant, S K Bhasker

  • 1Department of Ophthalmology, King George's Medical University, Lucknow, India. apjit@rediffmail.com

Orbit (Amsterdam, Netherlands)
|May 19, 2007
PubMed
Summary

Periorbital tuberculosis is a rare condition presenting as non-healing lesions. Early diagnosis and triple-drug therapy lead to dramatic clinical recovery in affected patients.

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Dermatology

Background:

  • Periorbital tuberculosis is an uncommon manifestation of Mycobacterium tuberculosis infection.
  • It can occur in patients with or without disseminated tuberculosis.
  • This case series highlights its presentation and management.

Observation:

  • Seven cases of periorbital tuberculosis were observed.
  • Clinical presentation included non-healing sinuses and osteomyelitis of periorbital bones.
  • Diagnostic tests showed positive Tuberculin Skin Test (TST) and Polymerase Chain Reaction (PCR), but negative Acid-Fast Bacilli (AFB) cultures.

Findings:

  • Triple-drug anti-tuberculosis therapy resulted in a dramatic clinical response.
  • Complete clinical recovery was observed after one year of follow-up.

Related Experiment Videos

Last Updated: Jul 14, 2026

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients
03:47

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients

Published on: October 25, 2024

  • Diagnostic challenges include negative AFB cultures despite clinical suspicion.

    • Implications:

    • A high index of suspicion is crucial for diagnosing atypical periorbital inflammatory conditions.
    • Early recognition and appropriate anti-tubercular treatment are vital for favorable outcomes.
    • This presentation underscores the diverse clinical spectrum of tuberculosis.