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Related Concept Videos

Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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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...
978
Pulmonary Tuberculosis II01:28

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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...
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Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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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...
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Pulmonary Tuberculosis III01:31

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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:
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Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

537
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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Properties of Enantiomers and Optical Activity02:24

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It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...
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Imaging Mycobacterium tuberculosis in Mice with Reporter Enzyme Fluorescence
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Optic Perineuritis Due to Tuberculosis.

William B Yates1, Simon Nothling, Mitchell Lawlor

  • 1Save Sight Institute (WBY, ML), Discipline of Ophthalmology, Faculty of Medicine and Health, University of Sydney, Sydney, Australia; Sydney Eye Hospital (WBY, ML), Sydney, Australia; and Retina & Macula Specialists (SN), Hurstville, Australia.

Journal of Neuro-Ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society
|September 12, 2018
PubMed
Summary
This summary is machine-generated.

Tuberculosis can cause optic perineuritis, a rare condition affecting vision. Differentiating it from optic neuritis is crucial for proper diagnosis and treatment.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Infectious Diseases

Background:

  • Optic perineuritis is an uncommon inflammatory condition affecting the optic nerve sheath.
  • Distinguishing optic perineuritis from optic neuritis is clinically significant.
  • Tuberculosis is a potential, though infrequent, cause of optic perineuritis.

Observation:

  • A 30-year-old male presented with subacute peripheral visual field loss in the right eye.
  • Central vision was preserved during the initial presentation.
  • The patient was diagnosed with optic perineuritis attributed to tuberculosis.

Findings:

  • The case highlights a rare presentation of tuberculosis-induced optic perineuritis.
  • Peripheral visual field defects with intact central vision can be indicative of optic nerve sheath inflammation.
  • Diagnostic challenges exist in differentiating optic perineuritis from optic neuritis.

Implications:

  • Accurate differentiation impacts diagnostic workup and treatment strategies.
  • Early recognition of infectious causes like tuberculosis is vital for effective management.
  • This case underscores the importance of considering uncommon etiologies in visual field defects.