4 Investigations: Microbiology

4 Investigations: Microbiology

Figure 4.1a Unstained Candida albicans.

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Figure 4.1b Candida hyphae PAS staining.

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Figure 4.1c Candidosis (silver stain).

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Figure 4.1d Candida colonies.

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Figure 4.1e Histoplasmosis silver impregnation.

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Figure 4.1f CMV immunohistochemistry.

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Table 4.1 Common microbiological stains.

Stain Main components Main uses
Acid fast (Ziehl-Neelsen and Kinyoun stains) Carbol fuchsin and methylene blue Differentiates bacteria with waxy cell walls, e.g. Mycobacterium tuberculosis, Mycobacterium leprae, and Mycobacterium avium-intracellulare complex from those that do not
Gomori methenamine silver (GMS) Silver Stains carbohydrates in fungi
Gram Crystal violet, Gram’s iodine and safranin Stains Gram-positive bacteria (e.g. Staphylococci), and Gram-negative bacteria/>

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Jan 12, 2015 | Posted by in Oral and Maxillofacial Pathology | Comments Off on 4 Investigations: Microbiology
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