UW

Question 1

Icthyosis vulgaris

Answer 1

chronic, inherited skin disorder characterised by diffuse derma scaling –> skin appears dry and rough with horny plates resembling fish or reptile scales
treatment: emollietes, keratolytics, topical retinoids

Question 2

clobetasol

Answer 2

high potency topical glucocorticoids

Question 3

MCC of erythema multiforme

Answer 3

HSV

Question 4

acne vulgaris - types

Answer 4

1. comedonal acne: closed or open comedones on forehead, nose + chin
2. inflammatory acne: pustules
3. nodular (cystic) acne: large nodules that can appear cystic

Question 5

comedonal acne - treatment

Answer 5

topical retinoids, salicylic, azelaic or glycolic acid

Question 6

infl acne - treatment

Answer 6

mild: topical retinoids + benzoyl peroxide
moderate: add topical antibiotics: erythrom or clindamycin
severeL add oral antibiotics

Question 7

nodular cystic acne

Answer 7

moderate: topical retinoid + benzoyl peroxide + topical antibiotcs
severe: add oral antibiotics
unresponsive: oral isotretinoin

Question 8

Mohs surgery

Answer 8

thin layers are reemoved and inspected microscopically to ensure clear margins –> used for high risk lesions in delicate or cosmeitically sensitive areas

Question 9

lupus vs rocasea facial rash

Answer 9

similar distribution –> lupus is darker, spares nasolabial, not affected by alcohol

Question 10

rosacea - treatment

Answer 10

1. avoidance of triggers
2. sun protection
3. gentle cleansers + emollients
4. topical metronidazole for papulopustular type
5. laser or topical brimonidine (vasocontrictive a2 agnostis)

Question 11

venous stasis ulcers - location

Answer 11

pretebial area or above medial malleolus

Question 12

arterial ulcers - location

Answer 12

most distal areas (tips)

Question 13

pressure decubitus ulcers

Answer 13

common over bony prominences (sacrum, ischial , heel, 1st or 5th metatarsal

Question 14

Piebaldism

Answer 14

AD disorder characterized by patchy absence of melanocytes (children)

Question 15

RF for widespread molluscum contagiosum

Answer 15

impaired cellular immunity (eg. HIV)

Question 16

hidradenitis suppurativa is a

Answer 16

chronic, relapsing condition characterized by inflammatory occlusion of folliculopilosebaceous units

• -> interginous skin areas + presennts as painful nodules that can progress to abcesses that open to the skin surface
  complications: sins tracts, comedones, scarring

Question 17

senile purpura

Answer 17

ecchymoses in elderly patietns in areas exposed to repeated minor trauma (extensor surface) –> due to age-related loss of elastic fibers in perivascular connective tissue

Question 18

actinic keratosis

Answer 18

scaly papules or plaques on the scalp, face, lateral neck, dorsal surface of the han
chronic sun exposure in the major RF –> can progress to SCC

Question 19

erysipelas vs cellulitis on manifestation

Answer 19

• erysipelas: superficial, raised , sharply demarcated edges, rapid onset, fever early in course
• cellulitis; deep, flat edges with poor demarcation, indolent, fever later

Question 20

dermatofibromas

Answer 20

nontender, firm, hyperpigmmented nodules that are usually smaller than 1 cm in diameter –> lower extremities –> contain fibrous component that causes central area to dimple when pinched

Question 21

mutlipe skin tag - seen ini

Answer 21

1. insulin resistance
2. pregnancy
3. perianal Crohn

Question 22

lipomas vs epidermal cysts

Answer 22

lipomas are soft and irregular, and do not typically regress and recur
also cyst can produce cheesy white discharge

Question 23

Telogen effluvium - clinical findings

Answer 23

1. acute, diffuse, noninflammatory hair loss
2. scalp + hair fibers appear normal
3. hair shafts easily pulled out (hair pull test)

Question 24

telogen effluvium - triggers

Answer 24

severe illness, fever, surgery
pregancy, childbirth
emotional distress
endocrine disorders

Question 25

telogen effuvium - management

Answer 25

adress underlying cause | reassurance