Extra credit: Name the lesion (Rashes)

Question 1

Name the possible lesions:
Widespread symmetrical universal
Entire body red (erythroderma)

Answer 1

Drug eruption

Psoriasis

Question 2

Name that lesion:
Widespread symmetric along lines of cleavage
Oval shaped lesions oriented roughly parallel to lines of cleavage

Answer 2

Pityriasis rosea

Question 3

Name that lesion:
Widespread asymmetric diffuse
Geographic lesions with areas of sparing

Answer 3

Pityriasis rubra pilaris

Question 4

Name that lesion:
Widespread asymmetric diffuse
Scaly erythematous annular patches on trunk and extremities

Answer 4

Tinea corporis

Question 5

Name that lesion:
Widespread asymmetric unilateral
1/2 of body involved in processes involving mosaicism

Answer 5

Epidermal nevus

Question 6

Name that lesion:
Localized to single arm
Blaschko-linear scaly erythematous papules and plaques

Answer 6

Inflammatory linear epidermal nevus

Question 7

Name that lesion(s) (2):

Localized to acral skin

Answer 7

Retiform purpura

Disseminated intravascular coagulation

Question 8

Name that lesion:
Localized to acral skin
Erythematous & edematous crusted papules and plaques primarily on distal extremities

Answer 8

Papular acrodermatitis of childhood

Question 9

Name that lesion:
Localized to sun exposed skin
Erythematous and edematous plaques localized to intermittently sun exposed skin

Answer 9

Polymorphous light eruption

Question 10

Name that lesion:
Linear discrete
Flat topped papules

Answer 10

Verruca plana (flat warts)

Question 11

Name that lesion:
Annular
Erythematous annular plaque w/ no overlying surface change localized to right dorsal foot

Answer 11

Granuloma annulare

Question 12

Name that lesion:
Annular
Erythematous annular plaque w/ focal overlying localized to an arm

Answer 12

Sarcoidosis

Question 13

Name that lesion:
Serpentine
Erythematous serpiginous track localized to right dorsal foot

Answer 13

Cutaneous larva migrans

Question 14

Name that lesion:
Guttate
Diffuse symmetric eruption of sharply demarcated erythematous guttate papules

Answer 14

Guttate psoriasis

Question 15

Name that lesion:
Nummular
Diffuse asymmetric scaly hyperpigmented nummular patches

Answer 15

Nummular dermatitis

Question 16

Name that lesion:
Targetoid
Solitary erythematous targetoid plaque w/ no overlying scale

Answer 16

Erythema migrans (Lyme disease)