🦲Alopecia

Question 1

Stages of hair growth cycle:

Answer 1

1. Anagen = ACTIVE GROWTH
2. Catagen = GROWTH STOPPED, DETACHING SLOWLY
3. Telogen = fully detached
   Prepared for next cycle

Question 2

Define alopecia

Answer 2

Absence of hair from an area in which it usually grows

Question 3

Androgenic alopecia: male pattern

Causes?

Answer 3

Genetic predisposition +
Direct effect of androgen on hair follicle

Question 4

Androgenic alopecia in MEN

Answer 4

Testosterone metabolises to DHT

DHT binds to androgen receptors in hair follicles

DHT activates genes that shortens the growth/anagen phase to weeks to months

Leads to follicular miniaturisation of hair follicles to produce fewer finer hair

Question 5

Androgenic alopecia

Treatment

Answer 5

Topical = minoxidil

Vasodilator
Increase duration of anagen

For at least 4 months

Question 6

Androgenic alopecia
Male and female

Systemic treatments

Answer 6

Male = Finasteride

Female = Spironolactone

Question 7

2. Telogen effluvium
   Define
   Moa

Answer 7

Reactive excessive shredding

Anagen prematurely terminated by triggering event

Question 8

3. Anagen effluvium
   Define

Answer 8

Abrupt loss of hair follicles in anagen phase
After physiologic insult, ie. chemotherapy

Question 9

4. Alopecia Areata

Define?
Presentation?

Answer 9

Polygenic autoimmune disorder

= circular patches anywhere on the body

Question 10

Alopecia Areata

Treatment

Answer 10

Betamethasone dipropionate

Question 11

5. Tinea Capitis

Define

Treatment

Answer 11

Infection of hair soft snd follicles by fungi of microsporum

Terminating or Griseofulvin

Question 12

6. Scarring Alopecia

Define

Answer 12

Active scalp inflammation that leads to permanent scarring alopecia

TRANSFER

Question 13

7. Trichotillomania

Define

Answer 13

Impulse control disorder/ mental health condition

Refer to psychologist