Dermatology Book

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Tinea Barbae

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  1. Epidemiology
    1. Adult males
    2. Seen now in farmers related to animal exposure
  2. Etiology
    1. Trichophyton verrucosum
    2. Trichophyton mentagrophytes
  3. Pathophysiology
    1. Dermatophyte infection of the beard and mustache area
    2. Trichomycosis (Invasion of Hair Shaft)
      1. Resembles Tinea Capitis infection
  4. Symptoms
    1. Pruritus
    2. Local tenderness
  5. Signs
    1. Distribution
      1. Beard and mustache area
      2. Eyelashes and eyebrows (rare)
    2. Pustular Folliculitis
      1. Hair Follicles surrounded by inflammation
        1. Papules and Pustules
        2. Superimposed exudate and crust
      2. Hair easily removed
    3. Circular reddish patches with scale
      1. Hairs broken off at surface
  6. Differential Diagnosis
    1. Bacterial Folliculitis (Staphylococcus aureus)
    2. Furuncle or Carbuncle
    3. Acne Vulgaris
    4. Rosacea
    5. Perioral dermatitis
    6. Pseudofolliculitis barbae
    7. Contact Dermatitis
    8. Herpes Simplex Virus (Eczema herpeticum)
  7. Labs: Potassium Hydroxide (KOH) of plucked hair
    1. Hyphae seen invading Hair Shaft
  8. Management: Systemic Antifungal Medications
    1. Treat for 2-3 weeks after lesion resolution
    2. Griseofulvin 500 mg PO bid for 4-6 weeks
    3. Ketoconazole 200 mg PO qd for 4-6 weeks
  9. Complications
    1. Staphylococcus aureus superinfection
    2. Kerion
  10. Reference
    1. Fitzpatrick (1992) Color Atlas Dermatology
    2. Hainer (2003) Am Fam Physician 67(1):101

Sycosis barbae (C0275798)

ConceptsDisease or Syndrome (T047)
ICD9110.0, 704.8
EnglishBarbers' itch, Barbers' rash, Dermatophytosis of beard, Folliculitis barbae, Mycotic sycosis, Sycosis barbae, Sycosis vulgaris, Tinea barbae, Tinea sycosis
Spanishfoliculitis de la barba, prurito de los barberos, sicosis de la barba, sicosis vulgar, tina de barba, tina de la barba, tina sicosis, tricofitosis de la barba
Parent ConceptsFolliculitis (C0016436), Sycosis (C0039023), Fungal infection of hair (C0343855), Hair follicle finding (C0423859), Infected face (C0577649), Ambiguous concept (C1274012), Inflammatory disorder of head (C1285337)
SourcesCOSTAR, MTH, MTHICD9, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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