6-SUBCUTANEOUS-FUNGI Flashcards
- MOT: trauma or pricking of the skin (ulceration, crusted, hard skins)
SUBCUTANEOUS MYCOSES
- Affects the extremities or feet
SUBCUTANEOUS MYCOSES
- Habitat: soil
SUBCUTANEOUS MYCOSES
- Mainly caused by dematiaceous fungi (slowly groeing fungi found in soil and vegetation)
SUBCUTANEOUS MYCOSES
Pseudoallescheria boydii, Exophiala, Acremonium, and Madurella
MYCETOMA
Granulomatous infection of the subcutaneous tissue causing cutaneous abscesses
MYCETOMA
o “(?)” – swollen tumor- like areas with sinuses for drainage
oma
Most infections are found in Africa
MYCETOMA
Exudate: red, yellow, or black granules
MYCETOMA
Fonsecaea pedrosoi, Phialophora, Cladosporium, Exophiala, and Wangiella
CHROMOBLASTOMYCOSIS
- Localized infection characterized by verrucoid (wartlike) crusted nodules of the skin
CHROMOBLASTOMYCOSIS
- Painless without secondary infection
CHROMOBLASTOMYCOSIS
- Affects the feet or lower legs
CHROMOBLASTOMYCOSIS
Seen in tropical areas of the world
CHROMOBLASTOMYCOSIS
Sclerotic bodies
CHROMOBLASTOMYCOSIS
- infection caused by dematiaceous fungi
PHAEHYPHOMYCOSIS
- Bipolaris, Curvularia, Phialophora, and Alternaria
PHAEHYPHOMYCOSIS
- Superficial or subcutaneous infection that can become systemic
PHAEHYPHOMYCOSIS
o Endocarditis
PHAEHYPHOMYCOSIS
o Brain abscesses
PHAEHYPHOMYCOSIS
- Sporothrix schenckii
SPOROTRICHOSIS
- Dimorphic fungi (either mold or
yeast)
SPOROTRICHOSIS
“(?)” – obtained from infected roses
rose gardener’s disease
Endemic among rose gardeners
SPOROTRICHOSIS
- Yeast: Agar with Blood at 35oC
SPOROTRICHOSIS
- Mold: SDA or PDA at RT
SPOROTRICHOSIS
- nodular lesions that suppurate, ulcerate and drain
SPOROTRICHOSIS
- Tree-like
Cladosporium
- chains branch from a conidium
Cladosporium
- with vase-shaped phialide arising from a conidiophore
Phialophora
- resembles a body builder
Rhinocladiella
- with primary, secondary and tertiary conidia
Rhinocladiella