Alopecia Flashcards
General Info
3 phases of hair cycle & what happens
- anagen (active growth)
- catagen (hair detaches)
- Telogen (follicles rest)
General Info
how many hairs do we lose each day normally?
100 to 200
General Info
important history questions
2
- is hair loss sudden or gradual?
- is hair loss focal or diffuse?
General Info
what does sudden hair loss indicate?
3 conditions
- alopecia areata
- telogen effluvium
- tinea capitis
General Info
what does gradual hair loss indicate?
2 conditions
- androgenetic alopecia
- trichotillomania
General Info
what does focal hair loss indicate?
4 things
- alopecia areata
- androgenetic alopecia
- tinea cavities
- trichotillomania
General Info
what does diffuse hair loss indicate?
4 things
- telogen effluvium
- alopecia universalis
- iron def anemia
- drug-induced hair loss
General Info
physical exam steps
5 things
- examine scalp for inflammation
- examine entire scalp by small parts throughout hair
- compare part width of the top of scalp w/ back of scalp
- note location & extent of thinning/loss
- perform hair pull/tug test
Androgenetic Alopecia
AKA
cicatrical baldness
Androgenetic Alopecia/Cicatrical Baldness
occurs in what % of men? by what age?
50% by 50
Androgenetic Alopecia/Cicatrical Baldness
occurs in what % of women? by what age?
50% by 80
Androgenetic Alopecia/Cicatrical Baldness
flow of hair loss seen in men?
- frontal hairline recedes
- bitemporal thinning
- thinning on top and crown
Androgenetic Alopecia/Cicatrical Baldness
hair loss seen in women?
where?
- thin on the top & sides
- retiain shape of hairline
Androgenetic Alopecia/Cicatrical Baldness
characterized by conversion of terminal hairs into what and then further into what?
- indeterminate
- vellus hairs
Androgenetic Alopecia/Cicatrical Baldness
tx
- topical minoxidil 5% daily foam
- PO finasteride or dutasteride QD