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Seborrhoeic dermatitis
Dermoscopic image of hair casts represented by detached hyperkeratotic and parakeratotic cells of the inner root sheath which surrounds the hair shaft

Seborrhoeic dermatitis

Dermoscopic image of hair casts represented by detached hyperkeratotic and parakeratotic cells of the inner root sheath which surrounds the hair shaft  


Keywords: Dermoscopy, Hair, Hair cast, Pseudonits, Scalp, Trichoscopy, Yellow cast



What is seborrhoeic dermatitis?

Seborrhoeic dermatitis is a common, chronic, or relapsing form of eczema/dermatitis that mainly affects the sebaceous gland-rich regions of the scalp, face, and trunk.

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Source: dermnetnz.org