Host factors in dimorphic fungal infections — Flashcards

Flashcard 1: Transmission of paracoccidioidomycosis occurs via _____

Answer: Inhalation of fungal spores (conidia)

Flashcard 2: Coccidioides is a _____ fungus, as its form changes based on the temperature of its environment

Answer: dimorphic

Flashcard 3: Which dimorphic fungus is transmitted via the inhalation of arthroconidia (spores) in desert dust?

Answer: Coccidioides immitis (Coccidioidomycosis)

Flashcard 4: Paracoccidioidomycosis is a _____ fungus that changes form with different temperatures

Answer: dimorphic

Flashcard 5: Candida albicans is _____, meaning it assumes different forms depending on the temperature of its environment

Answer: dimorphic**

Flashcard 6: Histoplasma is _____, meaning the temperature of its surroundings determines the form of the fungus

Answer: dimorphic

Flashcard 7: What fungus is actually a reverse of the dimorphic adage,with yeast in the cold and mold in the heat?_____

Answer: Candida albicans

Flashcard 8: Besides histoplasmosis, which other fungus can be detected through urine antigen testing?_____

Answer: Blastomycosis

Flashcard 9: 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 10: Dimorphic fungi exhibit a _____ morphology at ambient temperature and _____ morphology at body temperature.

Answer: mold