Syndrome:
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Hair grossly:
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Hair microscopically:
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(or Hair Shaft Abnormaity)
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Uncombable Hair Sx
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“spun glass” hair
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EM = pili trianguli et canaliculi
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trichothiodystrophy
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sparse brittle hair
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trichoschisis
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polarized light – tigertail hair
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Netherton’s syndrome
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Trichorrhexis Invaginata
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(Pili annulati)
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scintillating appearance
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alternating areas of light (normal)
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and dark (gas-filled) hair
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Menkes’ kinky hair syndrome
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sparse brittle hair
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pili torti
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(P)IBIDS
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sparse brittle hair
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trichothiodystrophy
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Monilethrix
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sparse brittle hair
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periodic beading
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Björnstad’s syndrome
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sparse brittle hair
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pili torti
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(trichorrhexis nodosua)
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tiny white “beads”
ends
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cortical fibers splayed out at both
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(pili torti)
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sparse brittle hair
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twisted hairs
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