alopecia

Question 1

2 parts of the hair that crow

Answer 1

1. stem cells in bulge

2. dermal papilla that pushes the hair out

Question 2

3 parts of hair cycle

Answer 2

1. anagen - 2-6 years
2. catagen - 3 weeks
3. telogen - 3 months

Question 3

what is fixed amount of time

Answer 3

telogen - always 3 months

Question 4

2 main groups of hair loss and their 3 types

Answer 4

non scarring
1. androgenetic alopecia
2. alopecia areata
3. telogen effluvium
scarring
1. lichen planopilaris
2. central centrifugal 
3. folliculitis decalvans

Question 5

what is on Hx and Phx in androgenetic alopecia in women

Answer 5

Hx
- gradual hair loss
- no shedding or ithco r burn
Phx
- wide central part
- pull test neg

Question 6

cause of aandrogenetic alopecia in men and women

Answer 6

men - androgen! and genetics

women - not same role for androgens

Question 7

Tx for androgenetic alopecia in men and women

Answer 7

women
- minoxidil
- androgen blockade
- transplants
men 
- minoxidil
- finasteride - sexual SE

Question 8

what is on Hx and Phx in alopecia areata

Answer 8

Hx
- circular ares of hair loss for 5 months
- +++ shedding
- no Sx
PhX
- smooth areas of hair loss

Question 9

3 degrees of alopecia areata

Answer 9

areata - some scalp loss
totalis - full scalp
universalis - full body

Question 10

cause of alopecia areata

Answer 10

• auto-immune attack of the bulb

- stem cells okay

Question 11

Tx of alopecia areata

Answer 11

• most improve

- topical steroids and interlesional injections

Question 12

what is on Hx and Phx in telogen effluvium

Answer 12

Hx
- diffuse hair loss for months
- clogged drains, brush full of hair
- 3 months after trigger
Phx
- diffuse hair loss
- pull test +ve

Question 13

patho of telogen effluvium

Answer 13

trigger pushes all hairs to telogen
SEND
Stress
Endocrine
Nutritional
Drugs

Question 14

what is on Hx and Phx in lichen planopilaris

Answer 14

Hx
- hair loss for years
- scalp feels on fire
Phx
- diffure loss
- scalp redness
- scale around hair follicles

Question 15

cause and Tx of lichen planopilaris

Answer 15

cause unknown - inflammation
Tx - shut down inflammation
- steroids
- systemics

Question 16

what is central centrifugal cicatrical alopecia

Answer 16

• common in black women

- scarring from hair styling?

Question 17

what is on Hx and Phx in folliculitis decalvans

Answer 17

Hx
- itch, burning, pain
- discharge of blood and pus
- common on  vertex
Phx
- pustules and crusting
- tufts of hair in one follicle

Question 18

cause and Tx of follicilits

Answer 18

cause - staph A

Tx - cephalexin