Defects of the hair shaft
Dermoscopic image of monilethrix; regularly distributed nodes and internodes along the hair shafts
Keywords: Alopecia, Autosomal dominant genetic disorder, Beaded hair shaft, Dermoscopy, Hair, Hair loss, Hair shaft constrictions, Hereditary disorder, Monilethrix, Perifollicular hyperkeratosis, Scalp, Trichoscopy
Structure of a normal hair follicle
The hair follicle is the structure of skin from which the hair shaft emerges. The hair shaft grows from germinative cells in the hair bulb deep within the dermis.
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