Dermatitis Disorders

Question 1

Itchy, linear rash with blisters

Erythematous streaking with vesicles

Answer 1

Rhus contact dermatitis (aka Poison ivy)

Question 2

Rhus contact dermatitis

Treatment

Answer 2

1. Systemic corticosteroid
2. Topical corticosteroid
3. Oral antihistamine

Must give them something for a longer time because the antigen doesn’t go away

Question 3

Atopic dermatitis

Answer 3

Aka eczema

Erythematous, eczematous patches antecubital and popliteal common for atopic dermatitis (flexor regions)

Question 4

Pathogenomonic/important symptoms

Atopic dermatitis

Answer 4

Eczema and asthma go hand in hand

Question 5

Atopic dermatitis

Treatment

Answer 5

1. Oral antihistamine (controls itch)
2. Topical corticosteroid (use carefully, thins skin)
3. Topical immune modulators (Elidel, Protopic)
4. Moisturizing cleansers, emollients, humidifier

Question 6

Dyshidrotic dermatitis

Description

Answer 6

Itching

Excoriated erythema with vesicles

Question 7

Dyshidrotic dermatitis

Pathognomonic symptoms

Answer 7

Worse when warm or moist

More common in hands (esp. if they wear gloves/have sweaty hands)

Question 8

Dyshidrotic dermatitis

Treatment

Answer 8

1. Topical corticosteroid
2. Oral antihistamine

MUST rule out tinea and contact dermatitis

Question 9

Nummular Dermatitis

Descriptions (2)

Answer 9

Multiple round, dry itchy erythematous patches

No white scaling, no central clearing

Question 10

Nummular dermatitis

Treatment

Answer 10

1. Topical corticosteroid
2. Oral antihistamine
3. Moisturizing cleansers, emollients, humidifier

Worse in the winter, must rule out tinea

Question 11

Seborrheic dermatitis

Answer 11

Redness, flaking

Oily skin, dandruff

Erythematous with mild scaling, diffuse flaking to scalp

Question 12

Seborrheic dermatitis

Pathognomonic symptoms

Answer 12

Over growth of yeast or fungus

Question 13

Seborrheic dermatitis

Treatment

Answer 13

1. SULFA based cleanser and/or anti dandruff shampoo
2. Topical anti fungal (ketoconazole)
3. Topical steroid (low potentcy)

Question 14

Stasis dermatitis

Answer 14

Swelling, redness and itching to lower extremities

Multiple varicosities

Edema, Lichenified, eczematous

Varicose veins

Must rule out blood clot
** worsens after standing

Question 15

Stasis dermatitis

Pathognomonic symptoms

Answer 15

Worse when standing

No infection

Things are static due to decreased blood flow

Seen in patients with HTN and heart failure

Question 16

Stasis dermatitis

Treatment

Answer 16

1. Topical steroids
2. Oral antihistamine
3. Compression socks
4. Systemic corticosteroids – can increase sugars, watch steroids
5. Oral antibiotics
6. Venous ultrasound

Question 17

Perioral dermatitis

Answer 17

Red bumps around mouth and nose

Multiple erythematous papules

No pustules, no honey colored crust

Question 18

Perioral dermatitis

Pathognomonic symptoms

Answer 18

Around the nose

Can be caused by lip-glosses or toothpaste

Question 19

Perioral dermatitis

Treatment

Answer 19

1. Oral antibiotics (anti-inflammatory affect – cyclines)
2. Topical antibiotics

DO NOT use corticosteroids bc they can make the problem worse with long term use

Question 20

Contact dermatitis

Answer 20

Dermatitis due to contact with something such as nickel

Tagless clothing, jeans, earrings

Question 21

Contact dermatitis treatment

Answer 21

1. Prednisone dosing for peds and adults

Possible dosing for rhus contact dermatitis