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Pulmonary Tuberculosis III

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 IV

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 II

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...

Bacterial Phylum Actinobacteria

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...

Atypical Pneumonia

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...

Pulmonary Tuberculosis I

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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Papulonecrotic Tuberculid with Positive Acid-fast Bacilli.

Ren Jun¹, Liu Xiao-Kun, Pan Chao

¹Department of Dermatology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong 510515, China ; Department of Dermatology, Zhongshan Hospital of Xiamen University, Xiamen, Fujian 361004, China.

Indian Journal of Dermatology

|February 2, 2013

Summary

Papulonecrotic tuberculid (PNT) caused persistent skin lesions resembling boils. Prompt multi-drug treatment confirmed the diagnosis, highlighting the importance of identifying acid-fast bacilli in pathology for effective disease control.

Keywords:

Acid-fast bacilli multi-drug therapy papulonecrotic tuberculid real-time polymerase chain reaction

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Area of Science:

Dermatology
Infectious Diseases
Microbiology

Background:

Papulonecrotic tuberculid (PNT) presents as chronic skin lesions.
Differential diagnosis can be challenging due to varied presentations.

Purpose of the Study:

To analyze the clinical and histopathological features of PNT.
To provide insights for disease prevention and control.

Main Methods:

Case study of two patients with persistent skin lesions.
Diagnosis confirmed by clinical presentation, laboratory tests, and histopathology.
Identification of acid-fast bacilli in pathological sections.

Main Results:

Patients presented with 'boil'-like lesions on arms and thighs.
Histopathology revealed evidence of PNT.
Positive identification of acid-fast bacilli was crucial.
Prompt response to multi-drug anti-tuberculosis therapy was observed.

Conclusions:

Papulonecrotic tuberculid is a treatable condition with characteristic clinical and pathological findings.
Early diagnosis and appropriate anti-tuberculosis treatment are essential for managing PNT.
Histopathological examination for acid-fast bacilli aids in confirming the diagnosis and guiding treatment.