Question: A 24-year-old male presents for evaluation of scaly pink plaques on his trunk. He says that he initially had a large lesion. Your initial thought is pityriasis rosea. Remembering the differential diagnosis of PR you decide to take a more detailed history. He reveals that he recently went on a hunting trip to Pennsylvania in the Spring. He says that he was bitten by a lot of bugs however does not specifically remember a tick bite. He reports that the large area that has now resolved looked like a big ring. He also complains of fever and arthralgia. Which of the following diagnosis should you be concerned about? Erythema migrans (Lyme disease) Psoriasis Nummular dermatitis Tinea corporis
