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Related Experiment Videos

Hair casts.

R P Dawber

    The British Journal of Dermatology
    |April 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Hair casts, often thought rare, are common in scalp conditions like psoriasis and seborrheic dermatitis. They were not observed in individuals using hair sprays or with traction hairstyles.

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    Area of Science:

    • Dermatology
    • Trichology

    Background:

    • Hair casts are an underreported finding in scalp conditions.
    • Previous literature suggested hair casts are rare, contradicting clinical observations in certain scalp diseases.

    Purpose of the Study:

    • To investigate the prevalence of hair casts in various scalp conditions.
    • To determine if hair casts are common in specific orthokeratotic and parakeratotic scalp diseases.

    Main Methods:

    • Systematic examination for hair casts in patients with diagnosed scalp conditions.
    • Inclusion of patients with psoriasis, pityriasis amiantacea, pityriasis capitis, seborrhoeic dermatitis, traction hairstyles, and regular hair spray users.

    Main Results:

    • Hair casts were frequently observed in psoriasis, pityriasis amiantacea, pityriasis capitis, and seborrhoeic dermatitis.

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  • No hair casts were detected in women with traction hairstyles.
  • No hair casts were found in individuals who regularly used hair sprays.

    • Conclusions:

    • Hair casts are a common finding in several common scalp conditions, contrary to previous assumptions.
    • The absence of hair casts in specific contexts (traction hairstyles, hair sprays) may indicate protective or masking factors.