Mycology Flashcards
Which four endemic mycoses can mimic TB?
- Histoplasmosis
- Coccidioidomycosis
- Paracocidioidomycosis
- Blastomycosis
What is a dimorphic fungus?
Lives in two forms: cold = mold (37°C), heat = yeast
Name the fungus associated with each of the following statements:
“Spaghetti and meatball” appearance on KOH prep
Malassezia furfur
Name the fungus associated with each of the following statements:
Contains cancer-causing aflatoxins
Aspergillus flavus
Name the fungus associated with each of the following statements:
Dimorphic fungus living on rose thorns and splinters
Sporothrix schenckii
Name the fungus associated with each of the following statements:
Urease (+), stains with India ink, and latex agglutination (+)
Cryptococcus neoformans
Name the fungus associated with each of the following statements:
Organism found inside macrophages; spread in pigeon and bat droppings
Histoplasma capsulatum
Name the fungus associated with each of the following statements:
Budding yeast, pseudohyphae; germ tubes at 37°C
Candida albicans
Name the fungus associated with each of the following statements:
Wide angle (90°) branching of irregular nonseptated hyphae
Mucor and Rhizopus sp.
Name the fungus associated with each of the following statements:
Big, broad-based budding dimorphic fungus
Blastomycosis
B-B-B-B-B (Big, Broad-Based Budding Blasto)
Name the fungus associated with each of the following statements:
45° angle branching and septated hyphae; fruiting bodies
Aspergillus sp.
Name the fungus associated with each of the following statements:
Narrow-based unequal budding yeasts with capsular halo
Cryptococcus neoformans
Name the fungus associated with each of the following statements:
Endemic to Ohio and Mississippi river valleys
Histoplasma capsulatum
”Flying-saucer” appearance of silver stain
Pneumocystis carinii (also P. Jirovici)
Name the fungus associated with each of the following statements:
”Captain’s wheel” appearance; endemic to rural Latin America
Paracoccidioidomycosis
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Rose gardener disease with ascending lymphangitis
Sporothrix schenckii—potassium iodide
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Tinea nigra
Phaeoannellomyces werneckii—topical salicylic acid
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Thrush in an immunocompromised patient
Candida albicans—nystatin (swish and swallow) and amphotericin B if systemic infection
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
San Joaquin (desert valley) fever; endemic to southwest United States, California
Coccidioides immitis—fluconazole and amphotericin B
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Interstitial pneumonia of the immunocompromised
Pneumocystis carinii (or P. jiroveci)—TMP-sulfamethoxazole (SMX) or pentamidine (prophylaxis when CD4+200 cells/mL)
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Tinea (pityriasis) versicolor
Malassezia furfur—topical miconazole or selenium sulfide
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Meningitis from pigeon droppings
Cryptococcus neoformans—amphotericin + flucytosine for 2 weeks followed by fluconazole
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Tinea cruris/capitis/corporis/unguium/pedis
Trichophyton, Epidermophyton, or Microsporum sp.—topical miconazole, oral griseofulvin for capitis and unguium
For each of the f ollowing diseases, name the fungus/yeast responsible and the drug of choice:
Fungus ball in lungs or invasive disease
Aspergillus fumigatus—voriconazole
