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What's the diagnosis?

A 12-year-old female with a history of seborrheic dermatitis presents to the pediatric dermatology clinic for evaluation of crusty, somewhat tender lesions on her face, chest, neck, and arms for 5 days. She has been applying hydrocortisone to the lesions without improvement. She reports that about 1 week prior she got a new hamster pet. She denies any other symptoms such as fever, chills, joint pain, hair loss, mouth sores, or sun sensitivity. No other family members are affected. She has no other hobbies and she does not practice any team sports. She takes no oral prescription medications or vitamin supplements. She uses salicylic acid shampoo and fluocinonide oil to treat her seborrheic dermatitis.

On physical exam, the girl is in no acute distress. Her vital signs are stable, and she has no fever.

On skin examination, she has several erythematous, crusted scaly plaques with double ring of scale on the nose, ears, neck, upper chest, and few on the abdomen. On her left abdomen, there is a small blister. Her seborrheic dermatitis is well controlled with mild erythema behind her ears and minimal scale on her scalp.

What's the diagnosis?

A. Tinea corporis

B. Allergic contact dermatitis

C. Bullous impetigo

D. Subacute cutaneous lupus

E. Bullous arthropod bite reaction

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Publication:Dermatology News
Date:Jun 1, 2019
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