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Man Lands in ER with Palpable Purpura - Can You Diagnose?



A 43-year-old man went to the emergency room with a symmetrical rash of palpable purpura on his legs. He also complained of a fever and arthralgia, but denied any headache or neck pain. The patient disclosed a current infection with hepatitis C virus.

Is it Rocky Mountain spotted fever. leukocytoclastic vasculitis, Sjogren syndrome, or acute meningococcemia?

Check out our differential in VisualDx.

The correct diagnosis is...

About VisualDx

VisualDx is an award-winning diagnostic clinical decision support system that has become the standard electronic resource at more than half of U.S. medical schools and more than 1,500 hospitals and institutions nationwide.  VisualDx combines clinical search with the world's best medical image library, plus medical knowledge from experts to help with diagnosis, treatment, self-education, and patient communication. Expanding to provide diagnostic decision support across General Medicine, the new VisualDx brings increased speed and accuracy to the art of diagnosis. Learn more at