Clinical manifestation

Pediculosis capitis (head lice): organisms most commonly found in retroauricular scalp; nits attach to hair shafts just above level of the scalp; pruritus with evidence of excoriation, particularly on the upper neck Pediculosis corporis (body lice): nits found in the seams of clothing, not on body of host; hemosiderin-stained purpuric spots where lice have fed (maculae ceruleae) Pediculosis pubis (pubic lice): lice and nits visible throughout pubic hair, extending onto adjacent hair-bearing areas; same organism also infests eyelashes

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