Papulosquamous Disorders

Question 1

key features of plaque psoriasis

Answer 1

eryth/ salmon plaques w silver scale

elbows, knees, scalp, umbilicus, gluteal cleft

Question 2

psoriasis associated with….

Answer 2

arthritis 10-25%
worsened by bblockers, Li, antimalaria, cortocosteroid withdrawal, IFN
- smoking, EtOh, obesity

Question 3

variants of psoriasis

Answer 3

napkin (diaper)
guttate
pustular
erythrodermic
palmoplantar
inverse

Question 4

nail changes in psoriasis

Answer 4

1/2
“onycho-dystrophy” which is nail pitting. Very assoc w psoriasis arthritis! 90%. Onycholysis is when it seps from nail bed.

Question 5

Good way to tell psoriasis from contact dermatitis, etc

Answer 5

psoriasis doesn’t spare the folds

Question 6

key features of lichen planus

Answer 6

PURPLE, polygonal, pruritic
Wickham’s striae (super fine white netting on the lesions)
oral involvement

Question 7

lichen planus assoc w?

Answer 7

hep C

Question 8

nail changes in lichen planus

Answer 8

long ridges

Question 9

Koebner phenomenon assoc w?

Answer 9

lichen planus
psoriasis
It is when a scar/scratch induces these changes in that part of the body

Question 10

pityriasis rosea key features

Answer 10

“herald patch” on arm, trunk, neck (often mistaken for tinea) followed by salmon-colored papules and plaques in christmas tree distrib. FOLLOW CLEAVAGE

Question 11

pityriasis rosea assoc

Answer 11

viral illness, possibly

Question 12

tx for pityriasis rosea

Answer 12

supportive

Question 13

guttate psoriasis features

Answer 13

salmon=pink papules with find scale.
“RAINDROPS”
kids>adults

Question 14

guttate psoriasis assoc w

Answer 14

strep pharyngitis before the outbreak

Question 15

2 types of palmoplantar psoriasis

Answer 15

pustular OR with fissues

Question 16

erythrodermic psoriasis

Answer 16

eryth on whole body. Bright red, fever, malaise.

Complication? heart fail bc all the blood goes to skin. difficult to diff from other erythroderma