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15 Cards in this Set
- Front
- Back
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describe the differences between superficial, cutaneous, and subcutaneous fungal infections
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superficial - limited to outermost layers of hair/skin (NO HOST RESPONSE).
cutaneous - deeper in the EPIDERMIS with some host response. Subcutaneous - infections in the DERMIS, muslce, fascia, subcutaneous tissue. |
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what are our four superficial disorders?
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pityriasis versicolor
tinea nigra black piedra white piedra |
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describe pitoryasis versicolor - causitve agent, disease progression
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M. FurFur. Superficial layer of epidermis. White/Brown scaly patches.
don't forget the spaghetti and meatballs. |
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what causes tinea nigra? what's the disease?
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H. Werneckii
disease = macular patches on soles of feet/palms |
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Black Piedra - what causes it? symptoms? fix?
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Piedra Hortae. See hard nodules along hair shaft. Need improved hygiene.
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White piedra?
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Trichosporin Beigii. Soft nodules along hair shaft.
Also can cause opportunistic infections. |
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what's dermatophytoses mean? what agents cause these?
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we just covered the superficial layer - these are the CUTANEOUS diseases.
Live in the epidermal (keratinized) layers. Binds hair/skin/nails. TEM: Trichophyton Epidermophyton Microsporum |
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what are the dermatophycoses diseases? which are there?
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the "tinea!"
pedis, capitis, corporis, cruris (jock itch), unguium (nails), favus (scalp) barbae (face) NOTE - unguinum is underlined and called ONYCHOMYCOSIS) |
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clinical appearance of the cutaneous infectious?
how do you analyze it? |
again they're trichopyton, epidermophyton, and microsporum.
clasisical clinical appearance (don't forget ID reaction - weird finger hypersensitive thing, distant fromp primary infection. RING WORMS!!! as always, use KOH prep to analyze. |
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Subcutaneous Mycoses - what are our diseases?
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sporotrichosis
Chromoblastomycocis Phaeohyphomycosis Eumycotic mycetoma |
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Clinical presentation of Sporotrichosis?
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messed up ADJACENT LYMPHATICS, nodular lesions. ROSE HANDLER's DISEASE.
Cigar shaped yeast. Picture rose handler with lined up bad lymph nodes, smoking a cigar. |
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what's chromoblastomycosis? disease?
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caused by DERMATICEOUS (pigmented) fungi. Has the word CHROMO in it. weird warty ulcerated lesions.
COPPER PENNIES in scope. Splitting, not budding. |
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Mycetoma?
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Can be either bacterial (Acinomycotic) or Eumycotic (fungal)
Lots of pus draining along sinuses, see GRANULES. Need to tell between bacterial/fungal. Amputation happens. |
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Phaeohyphomycosis -
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Black molds, PIGMENTED HYPHAE. Surgery.
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Summary: Sporotrichosis, Chromoblastomycosis, and Mycetoma:
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Sporotrichosis - lesions along lymphatic draininge, roses, cigar, treat with POTASSIUM IODIDE.
Chromoblastomycosis - Copper pennies, swollen tissue, crusty cauliflower disease Mycetoma - sinuses with granules. Can be bacterial or fungi. |
