Dermatology

Question 1

“Stuck on” appearance.

Answer 1

Seborrheic keratosis.

Question 2

Red plaques with silvery-white scales and sharp margins.

Answer 2

Psoriasis.

Question 3

The most common type of skin cancer; the lesion is pearly-colored papule with a translucent surface and telangiectasias.

Answer 3

Basal cell carcinoma.

Question 4

Honey-crusted lesions.

Answer 4

Impetigo.

Question 5

A febrile patient with a history of diabetes presents with a red, swollen, painful lower extremity.

Answer 5

Cellulitis.

Question 6

+ Nikolsky’s sign.

Answer 6

Pemphigus vulgaris.

Question 7

• Nikolsky’s sign.

Answer 7

Bullous pemphigoid.

Question 8

A 55 year old obese patient presents with dirty, velvety patches on the back of the neck.

Answer 8

Acanthosis nigricans. Check fasting blood glucose to rule out diabetes.

Question 9

Dermatomal distribution.

Answer 9

Varicella zoster.

Question 10

Flat-topped papules.

Answer 10

Lichen planus.

Question 11

Iris-like target lesions.

Answer 11

Erythema multiforme.

Question 12

A lesion characteristically occurring in a linear pattern in areas where skin come into contact with clothing or jewelry.

Answer 12

Contract dermatitis.

Question 13

Presents with a herald patch, Christmas tree pattern.

Answer 13

Pityriasis rosea.

Question 14

Pinkish, scaling, flat lesions on the chest and back, KOH prep has a “spaghetti-and-meatballs” appearance.

Answer 14

Tinea (pityriasis) versicolor.

Question 15

Four characteristics of a nevus suggestive of melanoma.

Answer 15

Asymmetry, border irregularity, color variation, and large diameter.

Question 16

A premalignant lesion from sun exposure that can lead to squamous cell carcinoma.

Answer 16

Actinic keratosis.

Question 17

“Dewdrops on a rose petal.”

Answer 17

Lesions of primary varicella.

Question 18

“Cradle cap.”

Answer 18

Seborrheic dermatitis. Treat conservatively with bathing and moisturizing agents.

Question 19

Associated with Propionibacterium acnes and changes in androgen levels.

Answer 19

Acne vulgaris.

Question 20

A painful, recurrent vesicular eruption of mucocutaneous surfaces.

Answer 20

Herpes simplex.

Question 21

Inflammation and epithelial thinning of the anogenital area, predominantly in postmenopausal women.

Answer 21

Lichen sclerous.

Question 22

Exophytic nodules on the skin with varying degrees of scaling or ulceration; the second most common type of skin cancer.

Answer 22

Squamous cell carcinoma.