Dermatology

Question 1

Stephen Johnson and TEN

Answer 1

Obtain a biopsy. Steroids do not actually appear to be helpful.

Question 2

Topical acne medications in pregnancy

Answer 2

Tazarotene is contraindicated in pregnancy. Can actually hypothetically use tretinoin.

Question 3

Morphea

Answer 3

Lesion is similar to systemic sclerosis but only 1 or 2 and located on the trunk and limbs

Question 4

Grover disease

Answer 4

Red papules on the chest, flanks and back that may become itchy with heat and sweating.

Question 5

Treatment of psorasis

Answer 5

• topical steroids are okay, DO NOT use systemic (can cause erythrodermic psoriasis)
• > 5% of body can use phototherapy
• MTX, cyclosporin, sulfasaline or etancerpt are other treatment options and help with joint symptoms

Question 6

Pemphigus vulgaris

Answer 6

• intracellular IgA deposits at epidermal surface
• flaccid bullae
• subset of patients with lymphoma or CLL

Question 7

Bullous pemphigoid

Answer 7

• linear IgG deposits at basement membrane
• TENSE bullae
• no oral or genital involvement

Question 8

Lentigo maligna

Answer 8

• light brown patch on face or upper trunk, can invade the epidermis
• only melanoma that can do thin shave biopsy

Question 9

Sentile lymph node biopsy in melanoma?

Answer 9

if > 1 mm thick

Question 10

Erythrasma

Answer 10

Red to bornw lesion. Sometimes it can be a bit itchy. Bright coral pink fluorescence with Wood Lamp