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Vitiligo Flashcards

1
Q

Stages of Hair growth

A
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2
Q

Causes of hair loss

A
  • Physiological
  • Pathological (Alopecia)
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2
Q

Definition of Alopecia

A

loss of hair from normally hairy area

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3
Q

Types of Alopecia

A
  • Cicatricial or scarring alopecia (permanent)
  • non Cicatricial or nonscarring (transient)
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4
Q

Causes of Non-cicatricial alopecia

A
  • Conginetal
  • Aquired
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5
Q

Aquired Causes of Non-cicatricial circuscribed (Patterned) alopecia

A
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5
Q

Aquired Causes of Non-cicatricial alopecia

A
  • Circumscribed (Patterned)
  • Diffuse
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6
Q

Aquired Causes of Non-cicatricial Diffuse alopecia

A
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7
Q

Congenital causes of cicatricial alopecia

A

developmental defect

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7
Q

Aquired causes of cicatricial alopecia

A
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7
Q

Definition of Alopecia Areata

A

circumscribed non scarring hair loss with normal skin

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8
Q

Etiology of Alopecia Areata

A
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9
Q

CP of Alopecia Areata

A
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10
Q

Lesions in Alopecia Areata

A
  • Circumscribed area of hair loss, nonscarring with normal skin
  • Positive exclamation mark! (tapered proximal end of the hair shaft)
  • May affect scalp, face or body hair
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11
Q

Clinical types of Alopecia Areata

A
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12
Q

Prognosis of Alopecia Areata

A

Bad prognosis in the following conditions:
1- Alopecia totalis, universalis and ophiasis
2- Alopecia areata with nail pitting
3- Alopecia areata in atopics

12
Q

Associated features to Alopecia Areata

A

1- Nail pitting
2- Atopy (atopic dermatitis)
3- Vitiligo
4- Cataract

13
Q

DDx of Alopecia Areata

14
Q

TTT of Alopecia Areata

15
Q

Causes of hyperpigmentation

16
Q

Causes of Hypopigmentation

17
Q

Casues of depigmentation

18
Q

Def of Vitiligo

A

acquired idiopathic depigmentation (leukoderma) of the skin

19
Q

Etiology of Vitiligo

20
Q

Precipitataing factors for Vitiligo

A

1- Emotional stress
2- Sun burn
3- Physical trauma (Koebner’s phenomenon)

21
Q

CP of Vitiligo

A
  • Milky white depigmented macules or patches affecting any area.
  • Hair and mucous membranes may be affected

Sites: face, hand, feet. back are sires of predilection

22
Q

Classification of Vitiligo

23
Q

Prognosis of Vitiligo

A

1- Unpredictable
2- Stationary
3- Spontaneous re-pigmentation
4- Slowly progressive
5- Rapidly progressive

24
Q

DDx of Vitiligo

A

1- Pityriasis alba
2- Pityriasis versicolor (hypopigmented type)
3- Post inflammatory hypopigmentation
4- Albinism
5- Post-burn and post-chemical depigmentation

25
Q

TTT of Vitiligo

Drafts (11 decks)

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