FUNGAL INFECTION
(MYCOSES)
Dr. Deepak Pradhan
Kanitpur college
Fungal infection(mycoses)
Superficial mycoses:• Limited in the stratum corneum.
• Fungi that cause superficial infection are called dermatophytes.
• There are 3 genera
a) Microsporum
b) Trichophyton
c) Epidermophyton
• Infection caused by these fungi are called tinea or ringworm.
Classification:Classification of superficial mycoses is based on the site of affection.
Type
Location & caused
by
Clinical manifestation
Treatment
Tinea capitis
head.
Caused by
microsporum
audouinii &
trichophyton
tonsuranus
. Common in children
. Oval,scaling,erythematous
patches
. Small papules on scalp
. Brittle hair that break easily
. Griseofulvin for 6 week
. Shampoo hair 2 or 3
times with Nizoral or
selenium sulfide
shampoo
Tinea
corporis
Body.
Caused by
trichophyton
rubrum
. Begins with red macule,
which spread to ring papules or
vesicles with central clearing
. Lesion found in cluster
. Many spread to the hair,
scalp, nail
. Very pruritic
. An infected pet may be source
. Mild condition: topical
antifungal cream
. Severe condition:
griseofulvin or
terbinafine
Tinea cruris
Groin area
Caused by
trichophyton
rubrum
. Begins with small red scaling
patches which spread to form
circular elevated plaques.
. Very pruritic
. Cluster of pustules may be
seen around borders
. Mild condition: topical
antifungal cream
. Severe condition:
griseofulvin or
terbinafine
Tinea pedis
Foot ; athlete’s foot
Caused by
trichophyton
rubrum
. Soles of one feet or both have
scaling & mild redness with
maceration in the toe webs
. More acute infection may
have cluster of clear vesicles on
dusky base
. Soak feet in vinegar
and water solution
. Resistant infection
griseofulvin or
terbinafine
. Terbinafine(lamisil)
daily for 3 months
Tinea
ungum
Toenails; affect
about 50% of adult
Caused by
trichophyton
rubrum
. Nails thicken, crumble easily,
and lack luster
. whole nail may be destroyed
. Itraconazole
(sporanox) in pulses of
1 week a month for 3
months in case of
terbinafine failure.
Diagnosis
Wood’s light examination of the broken hair is highly
diagnostic and yields green fluorescence.