trichoscopy basics

Question 1

normal number of hairs coming from one follicle ?

Answer 1

2-3 hairs per follicle

Question 2

when do we find predominance of 1 hair/follicular unit predominance ?

Answer 2

androgenic alopecia
teelogen effluvium

Question 3

term used to describe diversity in diameter of hair follicles ?

Answer 3

anisotrichosis
seen in androgenic alopecia

Question 4

features of telogen effluvium on trichoscopy ?

Answer 4

short regrowing hairs

Question 5

features of alopecia areta on trichoscopy ?

Answer 5

exclamation mark hair
black dots
yellow dots

Question 6

trichoscopy findings of trichotillomania

Answer 6

tulip hairs
flame hairs
broom hair
v sign
haiir powder
hairs broken at different lengths
trichoptilosis ( split ends )
black dots
Friar Tuck sign

Question 7

trichoscopy findings in tinea capitis

Answer 7

corkscrew hairs
comma hairs
zigzag hair
coiled or hook like hair

Question 8

what must coiled or hook like hair in tinea capitis be differentiated from ?

Answer 8

regrowing hair

Question 9

disease associated with mites and nits

Answer 9

pediculosis pubis

Question 10

large keratotic yellow dots present in

Answer 10

discoid lupus erythematous

Question 11

peripilar sign

Answer 11

brown halo around hair follicles present in androgenic alopecia

Question 12

inter-follicular white scales ?

Answer 12

psoriasis

Question 13

inter-follicular dots and globules ?

Answer 13

psoriasis

Question 14

yellow greasy scales in inter-follicular space ?

Answer 14

sebehrrohic dermatitis

Question 15

peri follicular scales and tubular casts ?

Answer 15

lichen planopilaris
along with tiny red follicular plaques on scalp

Question 16

how can you tell from examination iif it is scarring or non scarring alopecia ?

Answer 16

if follicles can be seen - non scarring
no follicles seen - scarring

Question 17

findings of tractiion alopecia on dermoscopy ?

Answer 17

white dots

Question 18

what are thee features of frontal fibrosing alopecia ?

Answer 18

absence of follicular opening
perifollicular hyperkeratosis
perifollicular erythema

Question 19

what is the C/P of short anagen syndrome ?

Answer 19

hair doesn’t grow long
same hair since being born
noticed at a young age
negative pull test
no dystrophic hair

Question 20

what is the C/P of loose anagen syndrome ?

Answer 20

same as short anagen syndrome
except there is dystrophic hair

Question 21

what anti hypertensive drug is associated with hair loss ?

Answer 21

lisinopril
ACE inhibitor
medical induced alopecia