Dermatology Quizzes

Most puzzling diagnoses of 2016In 2016, Dermatology Times, in partnership with VisualDx, quizzed you on a number of different skin disease diagnoses. From morphea to poikiloderma of civatte to livedo reticularis, we’ve shown cases that have stumped the most experienced dermatologists. Here are the three most-puzzling quizzes of 2016.
Crusted lesion of verrucous scaly plaque
Crusted lesion of verrucous scaly plaqueA 50-year-old Indiana farmer visited his doctor with flu-like symptoms including a fever, chills, productive cough, myalgia, and pleuritic chest pain that developed over a few weeks. What worried him was a crusted lesion on his arm that was a large verrucous scaly plaque.
Bluish-brown hyperpigmented patches on neck
Bluish-brown hyperpigmented patches on neckA 30-year-old woman asked her primary care doctor about bluish-brown hyperpigmented patches that had developed on her neck over the past several weeks. She had recently gotten over a parasitic infection after visiting extended family outside the United States.
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