Erosive Pustular Dermatosis of the Scalp
September 2021
in “
CRC Press eBooks
”
erosive pustular dermatosis of the scalp scarring alopecia sun-damaged skin sterile pustules erosions superficial crusts vertex trauma tissue damage herpes zoster immune dysregulation hair follicles trichoscopy anagen bulbs yellow crusts atrophic skin loss of follicular ostia EPDS scalp hair loss pustules crusts scarring sun damage immune system hair roots hair examination hair growth phase skin thinning
TLDR Erosive pustular dermatosis of the scalp causes painful, scarring skin lesions on the scalp, mainly in elderly people with sun-damaged skin.
Erosive pustular dermatosis of the scalp (EPDS) is a rare condition affecting elderly patients with long-standing sun-damaged skin, characterized by sterile pustules, erosions, and superficial crusts that can lead to scarring alopecia. It often occurs on the vertex and can range from a few lesions to extensive crusted plaques. Trauma and tissue damage, such as from herpes zoster or various medical treatments, are common triggers. The pathogenesis is unclear but may involve immune dysregulation in hair follicles. Trichoscopy reveals different features in active and chronic cases, such as visible anagen bulbs and yellow crusts in active disease, and atrophic skin with loss of follicular ostia in chronic disease.
