SPEX Dermatology 2

Question 1

Tinea versicolor, characterized by hypo- or hyperpigmented patches, is most commonly caused by which organism?

Accepted Answer

Malassezia furfur

Answer

Trichophyton rubrum

Answer

Candida albicans

Answer

Microsporum canis

Question 2

Wickham striae—fine white lacy lines on skin lesions—are pathognomonic for which dermatological condition?

Accepted Answer

Lichen planus

Answer

Psoriasis

Answer

Pityriasis rosea

Answer

Lichen sclerosus

Question 3

What is the first-line treatment for uncomplicated scabies in adults?

Accepted Answer

Topical permethrin 5% cream

Answer

Oral ivermectin

Answer

Topical lindane 1%

Answer

Oral doxycycline

Question 4

Which subtype of melanoma carries the worst prognosis due to its rapid vertical growth phase without a preceding radial growth phase?

Accepted Answer

Nodular melanoma

Answer

Superficial spreading melanoma

Answer

Lentigo maligna melanoma

Answer

Acral lentiginous melanoma

Question 5

In the ABCDE criteria for evaluating suspicious skin lesions for melanoma, what does the 'E' stand for?

Accepted Answer

Evolution or change over time

Answer

Elevation above surrounding skin

Answer

Extent of erythema

Answer

Exudate from the lesion

Question 6

Target (iris) lesions with three concentric zones on the skin and mucous membranes are characteristic of which hypersensitivity reaction?

Accepted Answer

Erythema multiforme

Answer

Pemphigus vulgaris

Answer

Bullous pemphigoid

Answer

Dermatitis herpetiformis

Question 7

What is the first-line topical treatment for inflammatory rosacea (papules and pustules)?

Accepted Answer

Topical metronidazole

Answer

Topical tretinoin

Answer

Topical hydrocortisone

Answer

Topical salicylic acid