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Mycology
FA mycology
| Question | Answer |
|---|---|
| What is the endemic location for Histoplasmosis? | Mississippi and Ohio River Valleys |
| What are the pathologic features of Histoplasmosis? | Macrophage filled with Histoplasma |
| What are the unique features of Histoplasmosis? | 1. Palatal/tongue ulcers 2. Splenomegaly 3. Pancytopenia 4. Erythema nodosum |
| Which systemic mycoses is associated with bird or bat droppings and caves? | Histoplasmosis |
| All systemic mycoses: | Dimorphic fungus - 20 C --> mold (cold) 37 C --> yeast (hot) |
| What is the treatment for all systemic mycoses? | Local infections --> Fluconazole or Itraconazole Disseminated infection --> Amphotericin B |
| What is the endemic location for Blastomycosis? | Eastern and Central US, Great Lakes |
| What are the pathologic findings of Blastomycosis? | Single Broad-based budding of Blastomyces (same size as RBC) |
| What are unique signs/symptoms of Blastomycosis? | 1. Inflammatory lung disease 2. Disseminate to bone and skin |
| What is the endemic location for Coccidiodomycosis? | Southwestern US, California |
| What is the pathologic description of Coccidioidomycosis? | Spherule (larger than RBC) filled with endospores of Coccidioides |
| What are unique features of Coccidioidomycosis? | Disseminate to skin and bone Erythema nodosum (dessert bumps) Arthralgias (desert rheumatism) +/- meningitis |
| Which systemic mycosis is associated with dust exposure? | Coccidioidomycosis |
| What is the endemic location of Paracoccidioidomycosis? | Latin America |
| What is the pathologic feature of Paracoccidioidomycosis? | Budding yeast with "captain's wheel" formation |