Diagnostic approaches for dimorphic fungi US Medical PG Flashcards - Medical Study Cards
Master Diagnostic approaches for dimorphic fungi with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Diagnostic approaches for dimorphic fungi Flashcard Deck - 10 Cards
Flashcard 1: The yeast cells of **Blastomyces** are __________ a red blood cell (RBC).
Answer: the same size as (larger than/smaller than/the same size as)
Flashcard 2: Blastomycosis is a _____ fungus that changes form with different temperatures
Answer: dimorphic
Flashcard 3: Which fungal infection is characterized by a yeast form with multiple buds that radiate out from a central vacuole?_____
Answer: Paracoccidioidomycosis
Flashcard 4: Coccidioides is a _____ fungus, as its form changes based on the temperature of its environment
Answer: dimorphic
Flashcard 5: Candida albicans is _____, meaning it assumes different forms depending on the temperature of its environment
Answer: dimorphic**
Flashcard 6: What is the morphology of Sporothrix schenckii in tissue?
Answer: Dimorphic fungus; seen as cigar-shaped budding yeasts in tissue.
Extra: • Causes Rose Gardener's Disease (lymphocutaneous sporotrichosis).
• Treatment: Itraconazole (DOC) or Potassium Iodide (SSKI).
• Dimorphism: Mold at 25°C (daisy-like conidia), Yeast at 37°C (cigar-shaped).
Flashcard 7: Dimorphic fungi exhibit a _____ morphology at ambient temperature and _____ morphology at body temperature.
Answer: mold
Flashcard 8: What type of fungus is Histoplasma capsulatum based on its growth characteristics?
Answer: Dimorphic fungus
Extra: - Transmission: Inhalation of spores from soil contaminated with bird or bat droppings (Mississippi and Ohio River valleys).
- Clinical: Histoplasmosis (calcified granulomas in lungs, hepatosplenomegaly).
- Treatment:
- Local/Mild: Itraconazole
- Systemic/Severe: Amphotericin B
- Key feature: Macrophages filled with small intracellular yeast.
Flashcard 9: Blastomycces spp.
Answer: dimorphic, broad-base budding
Extra: pneumonialocal - fluconazole or itraconazole
systemic - amphotericin B
East of Mississippi and Central America
Flashcard 10: Coccidioides spp.
Answer: dimorphic
Extra: Diseases: Pneumonia, meningitis
Treatment:
- Local/Mild: Fluconazole or itraconazole
- Systemic/Severe: Amphotericin B
Geography: Southwestern US, California, San Joaquin Valley
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