Dx Challenge Quiz – What is causing this man’s itchy neck rash?

A 62-year-old man visited his doctor about a rash that developed on his neck over the past few months. The patient noted that it was very pruritic and as a result he had been rubbing and scratching the affected areas frequently. The patient reported he had been under a lot of stress due to recent life changes. On examination, erythematous, scaly and lichenified plaques were seen on the lateral neck. He appeared well and was not on any medications.

A)     Lichen simplex chronicus

B)    Nummular eczema

C)     Seborrheic dermatitis

D)    Urticaria


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