hair, nails, pigment

Question 1

three stages of hair cycle

Answer 1

anagen (growth), catagen (regression), telogen (resting)

Question 2

three types of scarring alopecia

Answer 2

CCCA, Lichen plano pilaris, discoid LE

Question 3

alopecia areata

Answer 3

non scarring, autoimmune,

Question 4

androgenic alopecia: patterns, tx

Answer 4

Males; bitemporal and vertex. Women: part and crown. Minoxidil, finasteride

Question 5

Telogen effluvium: disease and workup

Answer 5

sudden shedding as large number of follicles enter telogen. ferritin, TSH, vit D

Question 6

trichotillomania

Answer 6

pulling out hair. bizarre shapes

Question 7

Central centrifugal cicatricial alopecia: who? scarring? tx

Answer 7

AA women. yes. steroids

Question 8

melanonychia

Answer 8

pigmented bands on nails. Careful of MELANOMA

Question 9

hutchinson’s sign

Answer 9

extension of pigemnt to proximal nail fold

Question 10

onychoLYSIS

Answer 10

detachment from nail bed. Causes: psoriasis, onychoMYCOSIS, meds

Question 11

vitiligo:

Answer 11

autoimmune destruction of melanocytes

Question 12

albinism:

Answer 12

lack of tyrosinase impairs melanin production

Question 13

melasma

Answer 13

hyperpigmentation of cheeks. pregnancy and oral contraceptives