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Tinea barbae
Dermatophytosis of the bearded area in men.
Etiology:
1) Trichophyton verrucosum
2) Trichophyton mentagrophytes
Epidemiology:
1) adult males
2) may be acquired through exposure to animals
3) more common in farmers
Pathology:
-> resembles Tinea capitis with invasion of the hair shaft
Clinical manifestations:
1) involves beard & moustache areas; rarely eyebrows & eyelashes
2) appears as pustular folliculitis
a) hair follicles surrounded by red inflammatory pustules or papules
b) exudates & crusting may occur
c) may be scaling
d) pruritus
e) pain & tenderness
3) may be regional lymphadenopathy
Laboratory: (see Tinea)
Differential diagnosis:
1) Staphylococcus aureus folliculitis
2) furuncle
3) carbuncle
4) acne vulgaris
5) rosacea
5) pseudofolliculitis
Management:
1) topical agents ineffective
2) systemic agents
a) griseofulvin is the treatment of choice
1] 7-10 mg/kg/day
2] evaluate 33-4 weeks
3] increase dose to 15 mg/kg is necessary
4] continue treatment for 2 weeks after cultures & KOH preps become negative (generally a total of 6-12 weeks)
b) ketoconazole is less effective
General
Tinea
References
- Harrison's Principles of Internal Medicine, 14th ed.
Fauci et al (eds), McGraw-Hill Inc. NY, 1998, pg 1159
- Color Atlas & Synopsis of Clinical Dermatology, Common
& Serious Diseases, 3rd ed, Fitzpatrick et al, McGraw Hill, NY,
1997, pg 710-11