Springer (part of Springer Nature), European Journal of Pediatrics, 1(170), p. 127-128
DOI: 10.1007/s00431-010-1257-9
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A 3-year-old girl showed fine, sparse, and brittle scalp hair without signs of cicatricial cutaneous alterations. Dermoscopy as well as scanning electron microscopy revealed elliptical nodes as well as constricted regions along the hair shaft.