fungal (mycotic) skin infections

8/3/2019 Fungal (Mycotic) Skin Infections

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C HA PT E R 56

P A G E S 1 6 9 1 - 1 6 9 2

Fungal (Mycotic) Skin Infections


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Fungal (Mycotic) Infections

y Fungi: tiny members of a subdivision of the plant kingdom

y Thrive on organic matter and in a warm, moist environment

y Commonly affect only the skin and appendages (hair and nails)

y Infections of the skin and appendages usually respond to topical treatment

y Systemic fungal infections that affect internal organs are of major concern as

well as secondary infection with bacterial Candida

y May be diagnosed by a skin scraping or by using Woods light (fluoresces)


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Tinea carpitis (head)Tinea carpitis (head)

y Contagious fungal infection of the hairshaft

y Common in children

y Oval, scaling, erythematous patches

y Small papules or pustules on the scalp

y Brittle hair that breaks easily

Treatment:

y Griseofulvin for 6 weeks

y Nizoral or Selenium Sulfide Shampoo

Types of Fungal (Mycotic) Infections


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Tinea corporis (body)Tinea corporis (body)

y Begins with red macule, which spreadsto a ring of papules or vesicles with

central clearingy Lesions found in clusters

y Many spread to hair, scalp and nails

y VERY PRURITIC!!!

y An infected pet may be the source

Treatment:

y Mild conditions: topical antifungalcreams

y Severed infections: Griseofulvin orterbinafine



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Tinea cruris jock itchTinea cruris jock itch

y Begins with small, red scaling patches,which spread to form circular elevated

plaquesy VERY PRURITIC!!!

y Clusters of pustules may be seenaround borders

Treatment:

y Mild conditions topical antifungalcreams

y Severe conditions griseofulvin orterbinafine



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Tinea pedis athletes footTinea pedis athletes foot

y Soles of one or both feet have scalingand mild redness with maceration in

the toe websy More acute infections may have

clusters of clear vesicles on dusky base

Treatment:

y Soak foot in vinegar and water solution

y Resistant infections: treat withgriseofulvin or terbinafine (Lamisil qd x 3wks



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Tinea ungum (toenails)Tinea ungum (toenails)

y Nails thicken, crumble and lack luster

y Entire nail may be destroyed

Treatment:

y Itraconazole (Sporanox) in pulses of 1week a month for 3 months in cases ofterbinafine failure



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D E R M N E T . ( 2 0 1 2 , J A N U A R Y 1 3 ) . R E T R I E V E D F R O MH T T P : / / W W W . D E R M N E T N Z . O R G / D O C T O R S / Q U I Z Z E S / 1 2 / C A S E 5 . H T M L

M E D I C I N E N E T . C O M . ( 2 0 1 2 , J A N U A R Y 1 3 ) . R E T R I E V E D F R O MW W W . M E D I C I N E N E T . C O M

S M E L T Z E R , S . C . , B A R E , B . G . , H I N K L E , J . L . , & C H E E V E R , K . H . ( 2 0 1 0 ) .B R U N N E R & S U D D A R T H ' S T E X T B O O K O F M E D I C A L - S U R G I C A L

N U R S I N G 1 2 E . P H I L A D E L P H I A : W O L T E R S K L U W E RH E A L T H / L I P P I N C O T T W I L L I A S & W I L K I N S .

References

fungal (mycotic) skin infections

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