Dermatology

Question 1

stuck on appearance

Answer 1

seborrheic keratosis

Question 2

skin cancer - lesion that is pearly-colored papule w/ a translucent surface and telangiectasias

Answer 2

basal cell carcinoma (most common skin cancer)

Question 3

honey-crusted lesions

Answer 3

impetigo

Question 4

+ nikolsky’s sign

Answer 4

pemphigus vulgaris (also consider TEN/SJS and staph scalded skin syndrome)

Question 5

• nikolsky’s sign

Answer 5

bullous pemphigoid

Question 6

pre-malignant lesion from sun exposure that can lead to squamous cell carcinoma

Answer 6

actinic keratosis

Question 7

cradle cap. tx?

Answer 7

seborrheic dermatitis. tx conservatively w/ bathing and moisturizing agents

Question 8

inflammation and epithelial thinning of the anogential area, predominantly in post-menopausal women

Answer 8

lichen sclerosus

Question 9

skin cancer - exophytic nodules on the skin w/ varying degrees of scaling or ulceration

Answer 9

squamous cell carcinoma (second most common skin cancer)

Question 10

key findings of NF1 vs NF2?

Answer 10

NF1 = cafe-au-lait spots, macrocephaly, feeding problems, short stature, and learning disabilities
NF2 = fewer cafe-au-lait spots, bilateral acoustic neuromas and cataracts

Question 11

erythematous papules, vesicles, and bullae that occur bilaterally, symmetrically, and in a grouped arrangment on the extensor surfaces, upper back, and buttocks. dx? tx?

Answer 11

dermatitis hepetiformis. tx w/ gluten-free diet and dapsone

Question 12

flaccid bullae vs tense bullae

Answer 12

pemphigus vulgaris vs bullos pemphigoid

Question 13

allergic contact dermatitis is what type of hypersensitivity reaction

Answer 13

type 4 HSR (delayed cell-mediated helper T-cell)

Question 14

strawberry hemangiomas vs cherry hemangiomas

Answer 14

strawberry - infantile hemangioma that regress spontaneously
vs
cherry hemangiomas - adult hemangioma that do not regress, but are benign and generally do not require tx

Question 15

reddish purple, dark vascular plaques or nodules on cutaneous or mucosal surfaces frequently seen in HIV infected pts. dx? cause?

Answer 15

kaposi sarcoma. caused by HHV-8

Question 16

sudden onset of a sharply demarcated, red, swollen, tender skin lesion w/ raised borders in a febrile pt. dx? most likely causative organism?

Answer 16

erysipelas. most commonly group a strep