Rosea/Dermatitis

Question 1

Older children and younger adults.
Common in winter.
Initial herald patch that resembles ringworm

Answer 1

Pityriasis rosea

Question 2

Herald patch > oval, slightly elevated, scaling papules (resemble herald patches but are smaller)

Answer 2

Pityriasis rosea

Question 3

Christmas tree pattern

Pink with scaling near border

Answer 3

Pityriasis rosea

Question 4

Spongiosus with erythrocyte extravasation

Answer 4

Pityriasis rosea

Question 5

Spontaneously remits in 6-8 wks without treatment. Recurrence is rare

Answer 5

Pityriasis rosea

Question 6

Venous incompetence causes increased hydrostatic pressure and capillary damage > extravasation of RBCs and serum

Answer 6

Stasis dermatitis

Question 7

Middle age and older adults.

Edema and hyperpigmentation > pruritic erythema and stasis dermatitis

Answer 7

Stasis dermatitis

Question 8

Incompetent venous valves in lower legs. Dependent edema

Answer 8

Stasis dermatitis

Question 9

Scaling, inflammation, pruritis, hyperpigmentation

Answer 9

Stasis dermatitis

Question 10

Ulceration above medial malleolus

Answer 10

Stasis dermatitis

Question 11

Subacute spongiotic dermatitis.

Not contagious. Related to HSV 7

Answer 11

Pityriasis rosea