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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:
Other Pulmonary Disorders01:17

Other Pulmonary Disorders

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.
Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand  RNA genome. Its genome consists of four main open...
Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand  RNA genome. Its genome consists of four main open...
Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...

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Video Experimental Relacionado

Updated: May 7, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
04:44

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease

Published on: June 16, 2020

La sarcoidosis es una sarcoidosis.

Dominique Valeyre1, Antje Prasse2, Hilario Nunes1

  • 1Department of Pneumology, Assistance Publique Hôpitaux de Paris, Avicenne University Hospital, Bobigny, France; University Paris 13, Sorbonne Paris Cité, Bobigny, France.

Lancet (London, England)
|October 5, 2013
PubMed
Resumen
Este resumen es generado por máquina.

La sarcoidosis es una enfermedad inflamatoria sistémica que causa granulomas. Los avances recientes mejoran el diagnóstico y el manejo de los síntomas, pero encontrar la causa y los tratamientos efectivos siguen siendo desafíos clave.

Videos de Experimentos Relacionados

Last Updated: May 7, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
04:44

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease

Published on: June 16, 2020

Área de la Ciencia:

  • Inmunología Inmunología.
  • Pulmonología Pulmonología.
  • Enfermedades sistémicas Las enfermedades sistémicas.

Sus antecedentes:

  • La sarcoidosis es una enfermedad sistémica de etiología desconocida caracterizada por la formación de granulomas.
  • La susceptibilidad genética y la exposición a antígenos no identificados están implicados.
  • Afecta principalmente a los pulmones y el sistema linfático.

Objetivo del estudio:

  • Para resumir los avances recientes en el diagnóstico y manejo de la sarcoidosis.
  • Destacar las mejoras en el reconocimiento y tratamiento de los síntomas clave del paciente y la calidad de vida.
  • Para delinear las futuras direcciones de investigación para la sarcoidosis.

Principales métodos:

  • Revisión de la literatura actual y las directrices de práctica clínica.
  • Análisis de nuevas indicaciones de diagnóstico, incluida la ecografía endobronquial y las exploraciones PET.
  • Centrarse en un mejor reconocimiento de los síntomas incapacitantes y los cambios en el estado de salud.

Principales resultados:

  • Mayor especificidad para la ecografía endobronquial en el diagnóstico.
  • Utilidad mejorada de PET para evaluar la actividad inflamatoria.
  • Mejor reconocimiento de síntomas incapacitantes persistentes como fatiga y disfunción cognitiva.

Conclusiones:

  • El diagnóstico de la sarcoidosis y el manejo de los síntomas han visto mejoras significativas.
  • La fibrosis pulmonar contribuye al aumento de la mortalidad.
  • Las futuras prioridades de investigación incluyen la identificación de la causa, biomarcadores y nuevos tratamientos para los casos refractarios.