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CMT > Alopecia > Flashcards

Alopecia Flashcards

1
Q

General Info

3 phases of hair cycle & what happens

A
  1. anagen (active growth)
  2. catagen (hair detaches)
  3. Telogen (follicles rest)
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2
Q

General Info

how many hairs do we lose each day normally?

A

100 to 200

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3
Q

General Info

important history questions

2

A
  1. is hair loss sudden or gradual?
  2. is hair loss focal or diffuse?
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4
Q

General Info

what does sudden hair loss indicate?

3 conditions

A
  1. alopecia areata
  2. telogen effluvium
  3. tinea capitis
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5
Q

General Info

what does gradual hair loss indicate?

2 conditions

A
  1. androgenetic alopecia
  2. trichotillomania
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6
Q

General Info

what does focal hair loss indicate?

4 things

A
  1. alopecia areata
  2. androgenetic alopecia
  3. tinea cavities
  4. trichotillomania
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7
Q

General Info

what does diffuse hair loss indicate?

4 things

A
  1. telogen effluvium
  2. alopecia universalis
  3. iron def anemia
  4. drug-induced hair loss
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8
Q

General Info

physical exam steps

5 things

A
  1. examine scalp for inflammation
  2. examine entire scalp by small parts throughout hair
  3. compare part width of the top of scalp w/ back of scalp
  4. note location & extent of thinning/loss
  5. perform hair pull/tug test
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9
Q

Androgenetic Alopecia

AKA

A

cicatrical baldness

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10
Q

Androgenetic Alopecia/Cicatrical Baldness

occurs in what % of men? by what age?

A

50% by 50

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11
Q

Androgenetic Alopecia/Cicatrical Baldness

occurs in what % of women? by what age?

A

50% by 80

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12
Q

Androgenetic Alopecia/Cicatrical Baldness

flow of hair loss seen in men?

A
  • frontal hairline recedes
  • bitemporal thinning
  • thinning on top and crown
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13
Q

Androgenetic Alopecia/Cicatrical Baldness

hair loss seen in women?

where?

A
  • thin on the top & sides
  • retiain shape of hairline
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14
Q

Androgenetic Alopecia/Cicatrical Baldness

characterized by conversion of terminal hairs into what and then further into what?

A
  1. indeterminate
  2. vellus hairs
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15
Q

Androgenetic Alopecia/Cicatrical Baldness

tx

A
  • topical minoxidil 5% daily foam
  • PO finasteride or dutasteride QD
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16
Q

Androgenetic Alopecia/Cicatrical Baldness

how long until minoxidil makes impact?

A

6 to 12 mo

17
Q

Telogen Effluvium

triggered by?

specificially what, then 4 examples

A

Major Stress
1. pregnancy
2. surgery
3. mental stresses
4. illnesses requiring hospitalization

18
Q

Telogen Effluvium

why does it last longer for some people?

A

subtle changes to their hormone levels (meds)

19
Q

Telogen Effluvium

how does it change the hair cycle?

A

makes it faster

20
Q

Telogen Effluvium

what labs should be ordered if you suspect this?

6

A
  1. TSH
  2. T4
  3. CBC
  4. Iron Studies
  5. Vit D
  6. RPR
21
Q

Telogen Effluvium

what is the most common treatable cause of hair shedding in women?

A

iron deficiency

22
Q

Telogen Effluvium

tx

A
  • reassurance
  • tx of underlying issue that labs uncovers
23
Q

Alopecia Areata

what attacks hair follicles?

A

lymphocytes

24
Q

Alopecia Areata

associated most commonly with what other disease?

A

thyroid disease

25
Q

Alopecia Areata

resolves w/out tx after how long?

26
Q

Alopecia Areata

how can re-growth hairs look?

A

thin or white

27
Q

Alopecia Areata

what type of attack on body causes this?

i.e. is it pathogen, autoimmune, malignancy, genetic?

A

autoimmune

28
Q

Alopecia Areata

where on body is this located?

A

any hair bearing part of body

29
Q

Alopecia Areata

what labs to consider?

A

thyroid panel

30
Q

Alopecia Areata

Tx

what 3 roues?

A
  1. intralesional injections
  2. Topical Steroids
  3. Topial Shampoo
31
Q

Alopecia Areata

what to use for intralesional injfection?

med, dose, duration, freq

A
  • Triamcinolone
  • 2.5-10 mg/mL
  • every 4 to 6 wks
32
Q

Alopecia Areata

what to start w/ if treating w/ steroids?

A

potent or ultra potent steroids
betamethasone valerate 0.01% foam
betamethasone dipropionate 0.05% lotion

33
Q

Alopecia Areata

what topical shampoo to use?

A

minoxidil 5% foam

34
Q

Trichotillomania

Caused by what?

A

forceful pulling & removal of the hair

35
Q

Trichotillomania

clinical presentation

A
  1. different lengths of hair w/in patch
  2. black dots from short hairs
  3. lack of scale or inflammation
36
Q

Trichotillomania

tx

A
  1. screen for anxiety & depression
  2. Behavioral interventions
  3. SSRIs if indicated

CMT (78 decks)

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