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a Dermoscopy of eyebrows. Bamboo hairs (green), golf tee hairs (yellow) and matchsticks hairs (red). b Trichorrhexis invaginata, confirmed with optical microscope from a sample of the occipital region. c Histopathology with hematoxylin and eosin stain at ×20 magnification showing hyperkeratosis, acanthosis, focal hypergranulosis, and superficial perivascular lymphocytic infiltrate.
