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Related Concept Videos

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 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 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...
Bacterial Phylum Actinobacteria01:30

Bacterial Phylum Actinobacteria

Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
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...

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Related Experiment Video

Updated: Jun 20, 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

Sporotrichoid-like tuberculosis.

Wilson Shu Cheng Pau1, Huda AlSaffar, Miriam Weinstein

  • 1Division of Infectious Diseases, Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.

The Pediatric Infectious Disease Journal
|September 24, 2009
PubMed
Summary
This summary is machine-generated.

Cutaneous tuberculosis (TB) is a rare childhood infection, particularly in developed nations. This study details two cases of sporotrichoid-like TB affecting limbs, nodes, and disseminated disease.

Related Experiment Videos

Last Updated: Jun 20, 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

Area of Science:

  • Pediatrics
  • Dermatology
  • Infectious Diseases

Background:

  • Cutaneous tuberculosis (TB) is an uncommon manifestation of tuberculosis infection in children.
  • Common forms include scrofuloderma, lupus vulgaris, lichen scrofulosorum, and TB verrucosa cutis.
  • Sporotrichoid-like presentation is a rare pattern of cutaneous TB.

Observation:

  • Two pediatric cases of sporotrichoid-like cutaneous tuberculosis were described.
  • One case involved localized infection of a limb and regional lymph nodes.
  • The second case was associated with disseminated disease.

Findings:

  • Sporotrichoid-like cutaneous tuberculosis is a rare but recognized presentation.
  • This pattern can manifest either locally or as part of a disseminated infection.
  • Early recognition is crucial for appropriate management.

Implications:

  • Highlights the importance of considering rare presentations of cutaneous TB in pediatric patients.
  • Suggests sporotrichoid spread as a potential clinical pattern for cutaneous tuberculosis.
  • Emphasizes the need for diagnostic vigilance in pediatric dermatology and infectious disease.