1 / 16

Actinomyces and Nocardia

Actinomyces and Nocardia. Chapter 24. 教学大纲. 掌握:放线菌属的形态染色、硫磺样颗粒。 熟悉:放线菌的致病性、与龋齿和牙周炎关系。. Actinomyces. A. israeli, A. naeslundii; G + Anaerobic , form filament, Exhibit true branching Related to decay tooth and peridentitis. Clinical specimens : Actinomycosis-pus.

Download Presentation

Actinomyces and Nocardia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Actinomyces and Nocardia Chapter 24

  2. 教学大纲 • 掌握:放线菌属的形态染色、硫磺样颗粒。 • 熟悉:放线菌的致病性、与龋齿和牙周炎关系。

  3. Actinomyces • A. israeli, A. naeslundii; • G+ • Anaerobic, form filament, Exhibit true branching • Related to decay tooth and peridentitis

  4. Clinical specimens : Actinomycosis-pus Sulfur granule is visible

  5. Sections or tabletting : chrysanthemum-like appearance

  6. Opportunist organism, component of oral flora (endogenous) Take advantage of injury topenetrate mucosal barriers Trauma Surgery

  7. Actinomycosis • A chronic suppurative and granulomatous disease of the cervico-facial, thoracic or abdominal areas

  8. Pus contains "Sulfur Granules" • yellow – orange • Composed of mineralized “mycelial” mass • Colony of bacteria

  9. sulfur granule • Form burrowing sinus tracts to skin or mucus membranes—— • Discharge purulent material

  10. Pulmonary Actinomycosis

  11. nocardia Nocardiosis • G+, rod ,weakly acid-fast • N. asteroides; N. brasiliensis • Subcutaneous infections, pulmonary infections, and brain abscesses

  12. Subcutaneous infections pulmonary infections

  13. Mycetoma(足分枝菌病)

  14. Features of actinomycetes Actinomyces:branching bacilli, non-acid fastness, anaerobic, oral ,intestinal ,endogenous flora, chronic cellulitis, draining sinuses Nocardia: branching bacilli ,weak acid fast, aerobic, soil (exogenous ) , pseumonia ,skin pustules , brain abscess

  15. summary • Actinomyces :stain ,clinical feature, disease • Nocardia: stain, disease

More Related