Papulosquamous Scaly Disease

Question 1

Erythematous papule and plaques covered with silvery scales on elbows, knees, scalp, with nail pits and other nail changes

Answer 1

Psoriasis

Question 2

Pinpoint bleeding spots from exposure of dermal papillae when scales are scraped off in psoriasis

Answer 2

Auspitz sign

Question 3

Psoriasis involving the folds, recesses, and flexor areas such as axillae, groin inframammary folds

Answer 3

Inverse psoriasis

Question 4

Abrupt eruption of psoriasis lesions following acute infection such as streptococcal pharyngitis

Answer 4

Guttate psoriasis

Question 5

Circular sharply circumscribed slightly erythematous dry scaly hypopigmented patches with advancing scaly border and central clearing producing annular outlines

Answer 5

Tinea

Question 6

Most common fungal disease

Answer 6

Tinea pedis

Question 7

Causes majority of tinea pedis

Answer 7

Trichophyton rubrum

Question 8

Infection of the nail plate

Answer 8

Onychomycosis

Question 9

Multiple scaly hyper or hypopigmented macules over the chest back abdomen and proximal extremities

Answer 9

Tinea versicolor

Question 10

Etiologic cause of Tinea versicolor

Answer 10

Malassezia furfur

Question 11

Classical microscopic finding in Tinea versicolor of short thick fungal hyphae and large numbers of variously sized spores

Answer 11

Spaghetti and meatballs

Question 12

Salmon colored macules and papules, collarette of scaling, scales tend to fold along the long axis of line of stretch follows skin lines (hanging curtain or “Christmas tree” sign), herald patch

Answer 12

Pityriasis rosea