Dermatology

Question 1

9 descriptions of atopic dermatitis?

Answer 1

• Erythematous
• Scale
• Plaques
• Excoriated
• Epidermal thickening
• Accentuated skin lines
• Xerotic
• Papular
• Erosions

Question 2

Typical location of atopic dermatitis for infants/toddlers

Answer 2

scalp, forehead, cheeks, extensor surfaces

Question 3

Typical location of atopic dermatitis for older children?

Answer 3

flexural surfaces of neck, elbows, knees, wrists, ankles

Question 4

Steroid cream choice for child’s face?

Answer 4

Hydrocortisone 2.5% ointment (least potent)

Question 5

4 major components of atopic dermatitis treatment?

Answer 5

• Anti-inflammatory
• Anti-bacterial
• Anti-pruritic
• Moisturizer

Question 6

Best antibacterial method other than antibiotics?

Answer 6

Dilute bleach baths for 10min twice weekly

Evidence shows decreases atopic dermatitis severity

Question 7

When to refer to Derm for atopic dermatitis?

Answer 7

• Recurrent skin infection
• Extensive/severe disease
• Poorly controlled w/ topical therapy

Question 8

Systemic (non-steroidal or abx) atopic dermatitis treatments?

Answer 8

• UV light therapy
• PO immunosupressants
• Biologic dupilumab

Question 9

What do you call hypopigmented atopic dermatitis on the face?

Answer 9

pityriasis alba

Question 10

What to do before starting systemic antibiotics?

Answer 10

culture the stuff

Question 11

Which antibiotics to use for bad atopic dermatitis flare?

Answer 11

• Keflex 250mg four times daily

- Dicloxacillin 250mg four time daily

Question 12

Triggers in atopic dermatitis?

Answer 12

• Temp change and sweating
• Decreased humidity
• Excessive washing
• Contact w/ irritating substances
• Contact allergy
• Staph aureus
• Food

Question 13

Non-steroidal topical for add on therapy for atopic dermatitis?

Answer 13

Pimecrolimus 1% cream (elidel)

Question 14

Low potency topical steroids?

Answer 14

Hydrocortisone 1% or 2.5% cream

Hydrocortisone 2.5% ointment

Question 15

Mild potency topical steroids?

Answer 15

Desonide 0.05% (diaper dermatitis)

Fluocinolone 0.01% cream (intertrigo)

Question 16

Mid strength topical steroids?

Answer 16

Triamcinolone 0.1% ointment

Fluticasone 0.005% ointment (severe hand ezcema)

Question 17

High potency topical steroids?

Answer 17

Fluocinonide 0.05% cream (lichen sclerosus/planus)

Question 18

Super high potency topical steroid?

Answer 18

Clobetasol 0.05% cream or ointment (resistant atopic dermatitis)

Question 19

Ddx for scarring alopecias?

Answer 19

Cutaneous lupus
Lichen planoopilaris
Dissecting cellulitis
Pustular dermatosis
Acne keloid

Question 20

Ddx for acquired diffuse scalp hair thinning?

Answer 20

Acute/chronic telogen effluvium
Tinea capitis
Alopecia areata
Trichotillamania

Question 21

Treatment for alopecia areata?

Answer 21

< 10% scalp = intralesional steroid, topical minoxidil/steroid
> 50% = others plus topical immunotherapy

Question 22

Common cause of patchy non-scarring hair loss?

Answer 22

Alopecia areata

Question 23

Ddx for non-palpable purpura?

Answer 23

Abnormal platelet function
DIC
Incraesed intravasc pressures
Thrombocytopenia
Coag defects

Question 24

What causes palpable purpura?

Answer 24

Inflammation of small cutaneous vessels (vasculitis)

Question 25

Useful labs for palpable purpura?

Answer 25

``` Urine w/ micro CBC ANA, ANCA Complement ESR HIV/HBV/HCV ASO titer ```

Question 26

What are purpura?

Answer 26

blood in the skin

Question 27

Types of purpura?

Answer 27

< 3mm = petechiae | Macular or Papular

Question 28

Pt presents with rash and facial edema, what to consider?

Answer 28

DRESS syndrome

Question 29

Drug reaction/exthanthemous rash description?

Answer 29

symmetric confluent erythematous macules AND papules

Question 30

Descriptions of urticaria?

Answer 30

well circumscribed erythematous edematous papules or plaques

Question 31

Most important vital sign in a leg ulcer?

Answer 31

Ankle brachial index

Question 32

Ddx of cellulitis?

Answer 32

``` Stasis dermatitis Allergic contact dermatitis Gout Lymphadema Dependent rubor ```

Question 33

What can mimic basal cell carcinoma?

Answer 33

sebaceous hyperplasia

Question 34

Types of tinea pedis?

Answer 34

interdigital vesicular moccasin

Question 35

Type of rapidly growing form of well-differentiated SCC?

Answer 35

keratoacanthoma