hair disorders Flashcards
what is the presentation of aplasia cutis congenita ?
localised absence of the skin
localized hair loss
appears as a small cap on the head
what are the features seen in tinea capitis ?
corkscrew hair
comma hair
zigzag hairs
yellow itchy scales on trichosccopy ?
seborrheic dermatitis
what are the signs associated with trichotillomania ?
v sign hair
broom hair
tulip hair
flame hair
hair dust
split ends
broken hairs at different levels
what are the signs sen on dermoscopy of alopecia areata ?
exclamation sign hairs
yellow dots
black dots
what are the signs associated with frontal fibrosing alopecia ?
absence of follicular opening
perifollicular hyperkeratosis
perifollicular erythema
what disease does a positive hair pull test indicate ?
telogen effluvium
non growing hair and negative pull test with no dystrophic hair ?
short anagen hair syndrome