Erythrasma (Corynebacterium minutissinum)

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Erythrasma (Corynebacterium minutissinum)
Erythrasma
(Corynebacterium minutissinum)
Erythrasma
Wood’s light: Coral-red fluorescence
Treatment guidelines:
• Topical imidazoles (miconazole,
clotrimazole, econazole etc)
Slapped cheek syndrome (Erythema infectiosum)
childhood
exanthem
associated with
human
parvovirus B19
Herpes inf.
• Oral Aciclovir
200mg x 5 a day
for 5 days
Eczema herpeticum: HSV
infection on ground of atopic
dermatitis
Herpes inf.
Treatment:
• Oral or i.v aciclovir
Molluscum contagiosum (MC) – “water blisters”
Treatment:
Caused by a pox virus
• None
• Manual extrusion with fine
forceps
6-y-o asymptomatic girl
C/O a slowly growing
patch on her (L) side of
the face for 1/12
Fungal inf.
Fungal inf.
Tinea facialis
Erysipelas
Tinea corporis
Fungal inf.
Tinea capitis
Treatment for
dermatophytoses:
• Topical antifungal Rx for
tinea corporis, facialis
and pedis
• Systemic Griseofulvin /
terbinafine / itraconazole for
tinea capitis and unguium
Candida inf.
1/12 old neonate presents
this rash for 1/52
Rx: Topical antifungals
Pityr.
versicolor
• Wood’s light (yellow)
Treatment:
• ketoconazole shampoo
• Clotrimazole cream
Scabies
sarcoptes scabies
Scabies (sarcoptes scabies)
Predilection sites: VERY IMPORTANT FOR THE DIAGNOSIS
Image from: Fitzpatrick's
Color Atlas & Synopsis
of Clinical Dermatology
4th ed. 2001
Management & treatment guidelines:
• Permethrin 5% cream
• Treat head & neck regions in infants
• Treat all family members in the same time
• In Latin America: Ivermectin tbs
Rashes associated
with systemic disease
18-y-o girl C/O malaise, lowgrade fever and tender,
dusky red deep nodules for
1/12
Erythema
nodosum
Acute inflammation of the
dermis & fat tissue
Most common causes (in UK):
streptococcal infection (throat),
sarcoidosis, idiopathic, drugs
Management & treatment guidelines:
Treatment:
1st line
• Treat underlying cause
• Symptomatic (NSAIDs, bed rest)
2nd line
• Colchicine
• Prednisone
Erythema multiforme (EM)
Def.: A cutaneous reaction to a variety of antigenic stimuli
Mild: target-like lesions
Management & treatment guidelines:
• Symptomatic measures (oral antihistamines + top. steroids)
• Oral ATBs (e.g. Erythromycin in case of Mycoplasma
infection)
• Oral aciclovir if associated with HSV infection (also for
recurrent EM >6 attacks/year) 400mg BD x 6/12 to 2 years

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