Vitiligo

Question 1

Stages of Hair growth

Answer 1

Question 2

Causes of hair loss

Answer 2

• Physiological
• Pathological (Alopecia)

Question 2

Definition of Alopecia

Answer 2

loss of hair from normally hairy area

Question 3

Types of Alopecia

Answer 3

• Cicatricial or scarring alopecia (permanent)
• non Cicatricial or nonscarring (transient)

Question 4

Causes of Non-cicatricial alopecia

Answer 4

• Conginetal
• Aquired

Question 5

Aquired Causes of Non-cicatricial circuscribed (Patterned) alopecia

Answer 5

Question 5

Aquired Causes of Non-cicatricial alopecia

Answer 5

• Circumscribed (Patterned)
• Diffuse

Question 6

Aquired Causes of Non-cicatricial Diffuse alopecia

Answer 6

Question 7

Congenital causes of cicatricial alopecia

Answer 7

developmental defect

Question 7

Aquired causes of cicatricial alopecia

Answer 7

Question 7

Definition of Alopecia Areata

Answer 7

circumscribed non scarring hair loss with normal skin

Question 8

Etiology of Alopecia Areata

Answer 8

Question 9

CP of Alopecia Areata

Answer 9

Question 10

Lesions in Alopecia Areata

Answer 10

• 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

Question 11

Clinical types of Alopecia Areata

Answer 11

Question 12

Prognosis of Alopecia Areata

Answer 12

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

Question 12

Associated features to Alopecia Areata

Answer 12

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

Question 13

DDx of Alopecia Areata

Answer 13

Question 14

TTT of Alopecia Areata

Answer 14

Question 15

Causes of hyperpigmentation

Answer 15

Question 16

Causes of Hypopigmentation

Answer 16

Question 17

Casues of depigmentation

Answer 17

Question 18

Def of Vitiligo

Answer 18

acquired idiopathic depigmentation (leukoderma) of the skin

Question 19

Etiology of Vitiligo

Answer 19

Question 20

Precipitataing factors for **Vitiligo**

Answer 20

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

Question 21

CP of **Vitiligo**

Answer 21

- 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

Question 22

Classification of Vitiligo

Answer 22

Question 23

Prognosis of **Vitiligo**

Answer 23

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

Question 24

DDx of Vitiligo

Answer 24

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

Question 25

TTT of **Vitiligo**