myco Flashcards
Chromoblastomycosis
“fonseka’s Pedro’s Compact Car is Very Wet”
Fonsecaea pedrosoi Fonsecaea compactum Cladosporium carrionii Phialophora verrucosa Exophilia aquaspersa
Fungi that Fluoresce
"All Good Cats and Dogs Fight Sometimes" A udouinii G ypseum C anis D istorteum F errugineum S choenleinii
Trichophyton Species
“Say Say Violet, You’re Going Right to Town” S udanese S choenleinii V iolaceum Y aoundei G ourvilii R ubrum T onsurans
Actinomadura madurae
yellow – white
Actinomadura pelletieri
red – most common in Africa
Nocardia asteroides– common in Central America
white
Nocardia brasiliensis found Mexico (most common; acid fast)
white
N. otitidiscaviarum
white
Nocardiopsis dassonvillei
cream
Streptomyces somaliensis
yellow – white to brown
Rhinosporidiosis
Protothecosis
Non-Fungi Causing Fungal-like Disease
• Polyps and granulomatous lesions in nose, mouth, and eyes
Rhinosporidiosis
Rhinosporidium seeberi aquatic protozoa
• Large sporangium 250-350 microns that look like raspberries
• Red with mucicarmine
Rhinosporidiosis
- Cryptococcus
- Histoplasmosis
- Penicilliosis
- Coccidioidomycosis
Umbilicated Lesions
Prototheca wickerhamii
• Achloric algae
Protothecosis
• Morula - “soccer ball” 8-20 microns
Protothecosis
- Immunocompromised patients
* Olecranon bursitis common
Protothecosis
Cryptococcosis #1
• C. neoformis
- HIV disease
* Pigeon droppings
Cryptococcosis
- Capsulated
- Gelatinous and granulomatous pattern
- India ink for capsule
Cryptococcosis
• #1 opportunistic fungus #1
Candidiasis
• C. albicans
- fluconazole resistance
• C. glabrata
• C. parapsilosis -
chronic paronychia
• C. tropicalis -
disseminates to skin
• C. dubliniensis -
mucosal disease in HIV
• Absidia, Rhizopus, Mucor
Zygomycetes
• Vascular invasion with necrosis of tissue
Zygomycetes
– Acidotic DM
• Rhinocerebral
• Non-septate, wide-ribbon-like hyphae with 90-degree branching
Zygomycetes
1Zygomycetes
• Rhizopus
Hyalohyphomycosis
• Non-pigmented hyphae
– Looks like aspergillus on biopsy, is a Hyalohyphomycosis
• Fusarium
– #1 in burn patients
– Necrotic
• Fusarium
• Dematiaceous fungi
Phaeohyphomycosis
• Alternaria -
hand grenade Phaeohyphomycosis
• Curvularia
- curved Phaeohyphomycosis
• Exophilala, bipolaris, wangiella
Phaeohyphomycosis
• Ubiquitous in nature • Opportunistic • Pulmonary • Cutaneous – Due to trauma – Hemorrhagic and escharotic
Aspergillosis
Aspergillosis #1
• A. fumigatus
- Septate hyphae with 45-degree angle branching
* Conidia with fruiting heads
Aspergillosis #1
• Bamboo rats (Southeast Asia)
Penicilliosis
• “Hand bones” or “broom” appearance
Penicilliosis
– Cladosporum looks similar
Penicilliosis acused by
• P. marneffei
• Molluscum-like
Penicilliosis