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Diabetic Man's Knee is Painful and Swollen - Let's Diagnose

mar11quiz.jpgA 71-year-old man with osteoarthritis and diabetes mellitus type 2 saw his primary care physician because his left knee was painfully swollen and warm to the touch. He was unable to swing his leg freely. The pain came on suddenly overnight, and he could not recall any injury that could explain the pain or swelling. He did not have a fever or any other systemic symptoms.

Could it be septic arthritis? Bursitis? Calcium pyrophosphate deposition disease? Polymyalgia rheumatica?

Check out the differential we created in VisualDx.

The correct answer 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