8: Skin Rashes And Lesions

Question 1

Why does SJS and TEN require pt to go to the ED?

Answer 1

If mucus membranes are involved, that can rapidly progress to affect airway -> admit to monitor for airway compromise

Question 2

Two special tools to help inspect rashes/lesions

Answer 2

1. Dermoscope: for magnification

2. Diascopy: helps blanch an area

Question 3

Two ways to treat Melasma

Answer 3

1. Limit sun exposure / use sunscreen

2. Consider topical bleaching creams

Question 4

Two treatments for atopic eruptions of pregnancy

Answer 4

1. Low strength topical steroids

2. Possible antihistamine if OK’ed by OB

Question 5

Open vs closed comedomnes

Answer 5

1. Open: blackheads, flat/slightly elevated papule with dilated central black opening filled with keratin
2. Closed: whiteheads, yellowish papules and pustules

Question 6

Acute vs subacute vs chronic eczema

Answer 6

1. Acute: erythema, vesicles, bullae, weeping, crusting
2. Subacute: scaly plaques, papules, round erosions, crusts
3. Chronic: lichenification, scaling, hyper and hypopigmentation

Question 7

Infant version of seborrheic keratosis

Answer 7

Cradle cap

Question 8

After what age is appearance of a new mole uncommon

Answer 8

Age 50

Question 9

Ugly duckling lesion

Answer 9

Pts with multiple pigmented lesions -> look for lesions that stand out from the rest -> could be a sign of melanoma