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Mycology 2
Subcutaneous mycoses
42
Other
Not Applicable
09/11/2012

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Cards

Term
Chromoblastomycoses
Definition
chronic infection, usually of feet and lower limbs, from repeated exposure to dematiaceous fungi in contaminated soil.
Cauliflower-like lesions
Caused by Fonseceae spp, Phialophora spp, and Cladosporum spp.
Term
Eumycotic Mycetoma
Definition
infection caused by repeated exposure and traumatic implantation from contaminated soil. usually in hands or feet. Granulomatous with supprative, draining lesions or abscesses.
Caused by Exophiala jeanselmei, Pseudoallescheria boydii/Scedosporium aspiospermum, and Madurella mycetomatis.
Term
Phaeohyphomycosis
Definition
any subcutaneous infection caused by dematiaceous fungi other than mycetoma and chromoblastomycosis. Keratitis, pulmonary, heart infections, systemic disease.
Wangiella dermatitidis
Term
Sporotrichosis
Definition
infection of lymphatic system and surrounding subcutaneous tissues. Line of lesions seen on inside of arm or leg. Commonly from rose thorns.
Caused by sporothrix schenckii
Term
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Definition

 

Phialophora sporulation

 

Demonstrated by Phialophora verrucosum

and Madurella mycetomatis (when grown on CM)

Term
[image]
Definition

 

Rhinocladiella type sporulation

 

Demonstrated by Fonsecaea spp.

Term
[image]
Definition

 

Rhinocladiella type sporulation

 

Fonsecaea spp.

Term
[image]
Definition

Cladosporium type sporulation

 

Demonstrated by Cladosporium spp. and Fonsecaea spp (primarily F. compacta)

Term
[image]
Definition

 

Cladosporium sporulation

 

Cladosporium spp.

Term
[image]
Definition

Sclerotic bodies 

or 

Muriform cells

 

Seen in chromoblastomycosis

Term
[image]
Definition

Fonsecaea spp.

 

Slow growth (2-3 weeks)

smooth, dark, velvety colonies

 

 

Term
[image]
Definition

Fonsecaea pedrosi

 

Septate hyphae, branched, yellow-brown

rhinocladiella type sporulation

Causes chromoblastomycosis

Term
[image]
Definition

Phialophora

 

Slow growth (2 weeks)

olive green to brown or black

velvety, smooth colonies

 

Term
[image]
Definition

Phialophora verrucosum

 

Phialophora type sporulation

septate, dark yellow-brown branched hyphae

 

Term
[image]
Definition

Phialophora verrucosum

 

Phialophora type sporulation

septate, dark yellow-brown branched hyphae

Causes chromoblastomycosis

Term
[image]
Definition

Cladosporium carrionii

 

Slow growth (3 weeks)

gray-green or purple brown 

velvety colonies

 

Term
[image]
Definition

Cladosporium carronii

 

Dark, septate hyphae

cladosporium type sporulation

 Causes chromoblastomycosis

Term
[image]
Definition

 

 

Eumycotic granule

 

 

Term
[image]
Definition

 

 

Eumycotic granule

Term
[image]
Definition

Exophiala jeanselmei

 

slow growth

yeast like

olive to black colonies

 

Term
[image]
Definition

Exophiala jeanselmei

 

branched conidiophore with tapered ends

elliptical conidia

single-file arrangement alone hyphae

Causes eumycotic mycetoma

Contaminated wood products

Term
[image]
Definition

Exophiala jeanselmei

 

branched conidiophore with tapered ends

elliptical conidia

single-file arrangement alone hyphae

Causes eumycotic mycetoma

Contaminated wood products

Term
[image]
Definition

Exophiala jeanselmei

 

branched conidiophore with tapered ends

elliptical conidia

single-file arrangement alone hyphae

Causes eumycotic mycetoma

Contaminated wood products

Term
[image]
Definition

Pseudoallescheria boydii

 

sexual phase

large brown cleistothecia containing asci and ascospores

Causes eumycotic mycetomas

 

 

Term
[image]
Definition

Scedosporium aspiospermum 

(asexual phase)

and 

Pseudoallescheria boydii

(sexual phase)

Term
[image]
Definition

Scedosporium aspiospermum

 

Asexual phase

unicellular conidia on thick septate conidiophores

produce white to yellowish granules in tissue sections

Causes mycetomas

 

Term
[image]
Definition

Scedosporium aspiospermum

 

Asexual phase

unicellular conidia on thick septate conidiophores

produce white to yellowish granules in tissue sections

Causes mycetomas

Term
[image]
Definition

Scedosporium aspiospermum

 

Asexual phase

unicellular conidia on thick septate conidiophores

produce white to yellowish granules in tissue sections

Causes mycetomas

Term
[image]
Definition

Madurella mycetomatis

 

slow growth (10 days)

olive, yellow, or brown

brown diffusible pigment

 

Term
[image]
Definition

Madurella mycetomatis

 

SAB: septate hyphae with chlamydospore-like enlarged cells

CM: phialophora type sporulation

Causes mycetomas

reddish brown to black granules in tissue sections, compact, variable in size and shape, and frequently multilobulated.

 

 

Term
[image]
Definition

Madurella mycetomatis

 

Phialophora type sporulation on CM agar

 

Causes mycetomas

Term
[image]
Definition

Wangiella dermatitidis

 

Grows at 42C

yeast like at 10 days, mold like at 3 weeks

septate hyphae

oval to round budding yeast cells

Causes Phaeohyphomycosis

Term
[image]
Definition

Wangiella dermatitidis

 

Grows at 42C

yeast like at 10 days, mold like at 3 weeks

septate hyphae

oval to round budding yeast cells

Causes Phaeohyphomycosis

Term
[image]
Definition

Wangiella dermatitidis

 

Grows at 42C

yeast like at 10 days, mold like at 3 weeks

septate hyphae

oval to round budding yeast cells

Causes Phaeohyphomycosis

Term
[image]
Definition

 

 

Sporothrix schenckii dimorphism

 

 

Term
[image]
Definition

Sporothrix schenkii mold phase

 

Rapid growth (4 days)

25C-30C

thin, hyaline septate hyphae

"rosette" formation or "daisy head" conidia

or single conidia in sleeve-like arrangement

Causes sporothricosis

Term
[image]
Definition

Sporothrix schenkii mold phase

 

Rapid growth (4 days)

25C-30C

thin, hyaline septate hyphae

"rosette" formation or "daisy head" conidia

or single conidia in sleeve-like arrangement

Causes sporothricosis

Term
[image]
Definition

Sporothrix schenkii mold phase

 

Rapid growth (4 days)

25C-30C

thin, hyaline septate hyphae

"rosette" formation or "daisy head" conidia

or single conidia in sleeve-like arrangement

Causes sporothricosis

Term
[image]
Definition

Sporothrix schenckii yeast phase

 

35C-37C

oval to round fusiform budding yeast

"cigar bodies" on BHI

Causes sporotrichosis

Term
[image]
Definition

Sporothrix schenckii yeast phase

 

35C-37C

oval to round fusiform budding yeast

"cigar bodies" on BHI

Causes sporotrichosis

Term
[image]
Definition

Sporothrix schenckii yeast phase

 

35C-37C

oval to round fusiform budding yeast

"cigar bodies" on BHI

Causes sporotrichosis

Term
[image]
Definition

Sporothrix schenckii yeast phase

 

35C-37C

oval to round fusiform budding yeast

"cigar bodies" on BHI

Causes sporotrichosis

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