Mycobacterium tuberculosis Flashcards

1
Q

morfologia Mycobacterium tuberculosis

A
  • Bacilo ácido-alcohol resistente
  • Pared rica en ácidos micólicos
  • No móvil
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2
Q

características Mycobacterium tuberculosis

A
  • Crecimiento lento
  • Catalasa positiva
  • Intracelular facultativo
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3
Q

factores de virulencia Mycobacterium tuberculosis

A
  • Ácidos micólicos: resistencia a desecación.
  • Factor cordón: inhibe migración de leucocitos.
  • Inhibición fagolisosomal: sobrevive en macrófagos.
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4
Q

epidemio Mycobacterium tuberculosis

A
  • Gotas respiratorias
  • Contacto prolongado
  • Mayor riesgo en inmunodeprimidos
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5
Q

infecciones Mycobacterium tuberculosis

A
  • Tuberculosis pulmonar
  • Tuberculosis extrapulmonar (ganglios, huesos, meninges)
  • Enfermedad miliar
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6
Q

dx Mycobacterium tuberculosis

A
  • Tinción de Ziehl-Neelsen
  • Cultivo en medios especializados
  • Prueba de tuberculina (PPD)
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