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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.
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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.
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Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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The pulmonary circulation is a vital system in our body that acts as a bridge between the respiratory and cardiovascular systems. It serves as a transport network for deoxygenated blood from the heart to the lungs and then returns oxygen-rich blood back to the heart.
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Pulmonary Sarcoidosis.

S E Van Brummelen1, K J Vliegenhart-Jongbloed, C E Van Die

  • 1Departments of Pulmonology, Havenziekenhuis, Rotterdam.. info@ubiquitypress.com.

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|November 6, 2018
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Summary
This summary is machine-generated.

A persistent dry cough and shortness of breath in a former smoker were investigated. Bronchoalveolar lavage revealed an elevated CD4+/CD8+ T-lymphocyte ratio, suggesting an immune response in the lungs.

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Area of Science:

  • Pulmonology
  • Immunology

Background:

  • A 34-year-old male teacher presented with an eight-week history of dry cough and exertional dyspnea.
  • He had a 12 pack-year smoking history, recently ceased.
  • Initial tuberculosis screening (Mantoux, Quantiferon) was negative.

Purpose of the Study:

  • To investigate the cause of persistent respiratory symptoms in a patient with negative initial tuberculosis workup.
  • To characterize the immunological profile of bronchoalveolar lavage fluid.

Main Methods:

  • Clinical assessment including physical examination and laboratory tests (C-reactive protein).
  • Pulmonary function testing.
  • Bronchoalveolar lavage (BAL) for cell counts and immunological analysis (CD4+/CD8+ ratio).
  • Conventional chest radiography.

Main Results:

  • Laboratory tests showed a C-reactive protein of 2 mg/L.
  • Pulmonary function tests indicated mild restriction.
  • BAL fluid analysis revealed a predominance of T-lymphocytes, with an elevated CD4+/CD8+ ratio of 4.2 (compared to 2.4 in blood).
  • Chest X-rays demonstrated bilateral lung consolidations, primarily on the right.

Conclusions:

  • The elevated CD4+/CD8+ ratio in BAL fluid suggests an atypical immune response within the lungs.
  • Further investigation is warranted to determine the underlying cause of the observed pulmonary consolidations and T-lymphocyte imbalance.