Term
| Which fast-growing, acute fungal infection has broad, aseptate branching at right angles? |
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Definition
| Zygomycetes (rhinocerebral zygomycosis) |
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Term
| Which fungi have septate branching at acute angles? |
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Definition
| Ascomyrcetes ("sac fungi") |
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Term
| What are some of the techniques used for visualizing fungi? |
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Definition
- Staining (silver-staining) to ascertain hyphae and specific structures (e.g. spherules of Coccidioides immitis)
- Digestion of debris by KOH prep
- Fungal cell wall stain (calcofluor)
- Autofluorescence (Wood's lamp)
- Negative stain (India Ink prep)
- Rapid antigen tests
- Skin tests
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Term
| Which species of fungi can colonize the respiratory tract, leading to long-term hypersensitivity I reactions? |
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Definition
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Term
| What is the "one of the most serious" fungal toxins and its associated fungus? |
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Definition
| Amanitin, from Aminita phalloides (death angel mushroom). Another example is ergotism from Claviceps purpurea, found on rye. |
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Term
| The hallmark of this disease is "spongiosis" or intercellular edema. At the clinical level, it presents with poly-morphous, ill-defined pruritic lesions. |
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Definition
Eczematous dermatitis.
The lesions will be characterized by thickening and gray scales. Spongiosis leads to keratinization. |
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