Atlas of Direct examination in gram-positive bacillary infections, Direct examination in gram-positive bacillary infections, Listeria monocytogenes, Corynebacterium pseudodiphtheriticum, Lactobacillus spp, Clostridium perfringens, Gardnerella vaginalis, Atlas in medical, tuyenlab.net
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| Fig 1. Amniotic fluid, cytocentrifuge, Gram stain, light microscopy, MPV. Purulence, light. Local materials, moderate. Gram-positive bacilli, small. Morphology consistent with Listeria monocytogenes. Impression: congenital listeriosis. |
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| Fig 2. Expectorated sputum, smear, Gram stain, light microscopy, MPV. Purulence, moderate. Local materials, moderate. Gram-positive bacilli, diphtheroid. Morphology suggests coryneform infection. Routine bacterial culture grew Corynebacterium pseudodiphtheriticum. |
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| Fig 3. Urine, cytocentrifugation, Gram stain, light microscopy, MPV. Purulence, moderate. Gram-positive bacilli, medium, long, chaining. Morphology consistent with Lactobacillus spp. Impression: cystitis |
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| Fig 4. Amniotic fluid, cytocentrifuge preparation. Gram stain, light microscopy, HPV. Purulence, light. Local materials, moderate. Gram-positive bacilli, medium, long, intracellular. Morphotype consistent with Lactobacillus spp. Impression: amnionitis. |
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| Fig 5. Amniotic fluid, smear, Gram stain, light microscopy, MPV. Purulence, light. Local materials, moderate. Gram-positive bacilli, large. Morphology consistent with Clostridium perfringens. Impression: amnionitis. |
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| Fig 7. Wound cellulitis, smear, Gram stain, light microscopy, MPV. Purulence, none. Amorphous debris, moderate. Gram-positive bacilli, large. Gram-negative bacilli, large. Morphology consistent with Clostridium spp. Impression: gas gangrene. Note that the growth rate of this organism is rapid and that both viable (gram-positive) and nonviable (gram-negative) bacilli can be present in the smear material. |
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| Fig 7. Colony from blood agar, smear, Gram stain, light microscopy, HPV. Gram-positive bacilli, diphtheroid, variably Gram staining. Morphotype consistent with Gardnerella vaginalis (see Fig 8). |
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| Fig 8. Amniotic fluid, smear, Gram stain, light microscopy, HPV. Local materials, heavy. Gram-positive bacilli, diphtheroid, variably Gram staining. Morphotype consistent with G. vaginalis. Impression: amnionitis. |
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