Superficial Mycoses
More Mycoses
Systemic (Dimorphic Mycoses)
PATH!
Miscellaneous
100
What are the three species of dermatophytes?
Microsporum, Epidermophyton and Trichophyton
100
Species that causes this?
Hortae Wernieckii (this is Tinea Nigra)
100
List the systemic (dimorphic) mycoses
Histoplasmosis, Blastomycosis, Coccidiodomycosis, Paracoccidiomycosis
100
What is this and how do you know?
Histoplasmosis:
Tuberculoid granuloma with intracellular 2-4 um yeast in histiocytes. Looks like leishmaniasis but see yeast have a surrounding halo and are more evenly distributed throughout histiocyte cytoplasm 
100
Molluscum Masqueraders in an HIV patient?
CCHP
Coccidiodomycosis
Cryptococcosis
Histoplamosis
Penicilliosis
200
Pathogen that most often causes vesicular/bullous tinea pedis?
Trichophyton Mentagrophytes
200
Species that causes Black Piedra? Species that causes White Piedra?
Black: Piedra Hortae
White: Trichosporin Asahii
200
Which of the systemic mycoses is associated with inhalation and exposure to bird & bat feces?
Histoplasmosis
200
What is this and how do you know?
Coccidiodomycosis
Large (up to 100 um) spherules containing endospores
200
KOH of Candida?
Yeast and Pseudohyphae
300
#1 cause of tinea capitis in US and #1 cause of tinea capitis worlwide?
BONUS: which drugs are most effective for these pathogens?
US: Trichophyton Tonsurans (terbinafine more effective)
Worldwide: Microsporum Canis (Griseofulvin)
300
Name of this finding?
Tinea Manuum
Characterized by non erythematous scaling of palm of one hand + moccasin type tinea pedis, treat with systemic antifungals
300
Geography Distrubtion of Histoplamosis vs. Blastomycosis
Histoplasmosis: Ohio & Mississippi River Valley
Blastomycosis: Ohio & Mississippi River Valleys BUT ALSO Eastern US and Great Lakes
300
What is this fungus and how do you know?
Blastomycosis
Budding yeast forms in the dermis. Arrow shows single broad based budding
300
Risk factors for developing Aspergillosis?
Neutropenic patient
IV catheter, Trauma Site, Burn Sites, Disturbed Skin Under Dressing
400
What stain is in Chlorazol Black E that shows green hyphae when present?
Chitin Stain
400
Pathogens that can cause sporotrichoid spread? (as pictured below)
NO SALT
Nocardia
Sporotrichosis
Atypical Mycobacteria
Leishmaniasis
Tularemia
"NO SALT"
400
What area in California is most associated with Coccidiodomycosis?
Central Valley/San Joaquin Valley 
400
What is this and how do you know?
Paracoccidiodomycosis
mulitpolar budding yeast with mariner's wheel or Mickey Mouse appearance
400
Exposure associated with Cryptococcosis?
Bird droppings (particularly pigeons)
500
What is the name of this finding (yellow, cup-shaped crusts that characterize tinea capitis favosa (also known as favus)?
Scutula!
500
What pathogen is and how do you know?
Sporotrichosis - seeing cigar shaped budding yeast.
500
What geographic locations is Paracoccidioidomycosis most assocaited with?
Southern US, Mexico and Central/South America (South American bolded in Alikhan)
500
What is this and how do you know?
Cryptococcosis
single celled sphere with double cell wall and thick capsule ("halo" appearance", collections of organisms look like soap bubbles
500
Microscopy of Aspergillosis?
Septate hyphae with 45 degree angle branching