Derm

Question 1

Pemphigus vulgaris (does/does not) involve mucosal surfaces and the Nikolsky sign is (positive/negative)

Answer 1

DOES involve mucosal surfaces (think mouth: painful swallowing and hoarseness)

Nikolsky sign is positive

Question 2

recently dx with Hodgkin lymphoma and very itchy, especially at night. What dx?

Answer 2

crusted scabies

Question 3

What dx? What is the key feature?

Answer 3

epidermal inclusion cyst

central punctum

Question 4

What dx?

Answer 4

psoriasis

Question 5

______ is due to chronic itching and scratching

Answer 5

lichen simplex chronicus

Question 6

a teardrop lesion after a course of strep throat should make you think of what dx?

Answer 6

Guttate psoriasis

Question 7

What is first line treatment for papules and pustules associated with rosacea?

Answer 7

metronidazole

Question 8

What type of reaction is an allergic contact dermatitis?

Answer 8

delayed hypersensitivity

Question 9

What is an acrochordon?

Answer 9

skin tags

Question 10

Which oral antifungal has the highest cure rate for onychomycosis?

Answer 10

terbinafine

Question 11

Bowen disease is a superficial skin cancer of which type?

Answer 11

Squamous cell

Question 12

What risk factor is strongly associated with increasing severity for HS?

Answer 12

smoking

Question 13

What are the sunscreen guidelines?

Answer 13

minimum SPF 30 applied generously 15 minutes before sun exposure and should be reapplied q 2 hours while outside

sunscreen is third line after clothing and shade

Question 14

What are the sunscreen guidelines for kids?

Answer 14

Sunscreen should be avoided on infants < 6 months of age if adequate clothing and shade are available

When adequate shade and clothing are not available, a small amount of sunscreen (minimum of SPF 15) can be used on small areas.

Question 15

Patients with psoriasis are at an increased risk of developing _______

Answer 15

systemic polyarthritis

Question 16

The single FDA box warning for pioglitazone is _______

Answer 16

congestive heart failure

Question 17

What is the MOA of isotretinoin?

Answer 17

Isotretinoin causes cutaneous sebum reduction by reducing the size of the sebaceous glands, thus decreasing sebum production

Question 18

Itchy with hx of chronic hep C. What dx? What tx?

Answer 18

cutaneous lichen planus

topical betamethasone

Question 19

What is the MC subtype of melanoma?

Answer 19

superficial spreading melanoma

Question 20

Cutaneous ______ (dx) is caused by ________ (pathogen) and presents as small reddish-brown macules that may coalesce into larger patches with sharp borders. They may be asymptomatic or pruritic and fluoresce coral-red on Wood lamp examination

Answer 20

erythrasma

Corynebacterium minutissimum

Question 21

What is the treatment for erythrasma?

Answer 21

topical or oral erythromycin.

Question 22

What type of malignant melanoma most likely occurs in dark pigmented population?

Answer 22

acral lentiginous

Question 23

What stage pressure ulcer?

Answer 23

stage 3

A stage 3 pressure injury describes a wound with full-thickness loss of skin, in which adipose tissue is visible in the ulcer. Undermining and tunneling may occur. Fascia, muscle, tendon, ligament, cartilage, and bone are not exposed.

Question 24

a hyperkeratotic, shallow ulcer with firm, elevated margins is noted on the right shoulder. The center of the ulceration appears crusted. Does sometimes bleed. What dx?

Answer 24

squamous cell carcinoma

Question 25

What is the most common malignant tumor of the nail?

Answer 25

squamous cell carcinoma

Question 26

What is the first line treatment for stage I HS?

Answer 26

topical clindamycin

Question 27

Hyperkeratosis, parakeratosis, and acanthosis of the epidermis are consistent with what dx?

Answer 27

Psoriasis