Race for the Case

Race for the Case is a clinical quiz feature published quarterly in Dermatology World Directions in Residency — and right here!

Review the case and photos, and submit your answers to the questions below. If you answer correctly, you'll be entered to win a $25 Starbucks gift card. Free coffee and pastries are on the line — what are you waiting for?

      New RFTC Winter 2017

Race for the Case: A 37-year-old male presents with three weeks of numbness in his left index finger and great toe with purple discoloration. He also has new onset calf claudication. He denies other systemic symptoms. He reports a remote history of IV drug use, alcohol abuse, and a 25-pack per year smoking history. 

This case was submitted by Markus Boos, MD, and Karolyn Wanat, MD.


What is the diagnosis?
What feature of his history is most associated with this disease?
What demographic is most commonly affected with this disease?
What is the treatment?
Full Name
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