allopecia Flashcards

1
Q

how long is the telogen phase?

A

is always 3 MONTHS

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2
Q

most scalp hairs are in what phase of the hair cycle

A

anagen

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3
Q

how many follicles arrive to the end of telogen by the end of each day

A

about 100

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4
Q

woman presents with widened center scalp, pull test negative

A

androgenetic alopecia

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5
Q

androgenetic alllopecia in men and women is characterized by

A

minituarization of the hair

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6
Q

where does hair loss start in men

A

temple and vertex

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7
Q

women do NOT experience hair loss due to androgenetic allopecia where?

A

in frontal scalp

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8
Q

what can you consider for treatment for hair loss in women and in men?

A

Minoxidil
spironolactone + OCP
Men: Minoxidil, finasteride

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9
Q

circular areas of hair loss for 5 months,
+++ shedding as hair is falling out,
smooth areas of hair loss

A

allopecia areata

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10
Q

what is the cause of allopecia areata

A

autoimmune attack on hair bulb/not on stem cells

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11
Q

most common nail finding in allopecia areata

A

pitting

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12
Q

first line treatment for alopecia areata

A

Steroids/topical or intralesional

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13
Q

Diffuse loss of hair everywhere, no itching or burning, Usually 3 months after a trigger, Pull test positive

A

Telogen effluvium

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14
Q

drugs that can cause telogen effluvium

A

beta blockers
lithium
SSRIs

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15
Q

a positive pull test is

A

when you pull on 50 hairs, 5 or more come out

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16
Q

Itching, burning pain, diffuse hair loss, scalp redness, scalp on fire, scale around the hair follicles with no hair follicle openings

A
  • Lichen planoplaris
17
Q

Clinical presentation of lichen planoplaris

A
  • perifollicular erythema
  • perifollicular scale
    LOSS of follicular openings
18
Q

treating lichen planoplaris

A
  • steroid/immunosuppressant - hair transplant
19
Q

Most common scarring allopecia in black women

A
  • Central centrifugal cicatricial alopecia
20
Q

central hair loss in a black woman

A

CCCA

21
Q

Pustules, crusting, and tufting, scalp swabs growing Staph aureus
itching, burning, Vertex

A

Folliculitis decalvans

22
Q

treatment for folliculitis decalvans

A

antibiotics