All Quizzes

A homeless man with lithophagia; hereditary trichoepithelioma; IBD mimics: can you answer this week's quiz questions about these and 2 other disorders?

Here, 3 slide shows that were the most popular of our weekly offerings in 2013. Have a go at the quiz questions and see how well you do.

Injuries and overuse often are the cause of knee disorders, but chronic conditions also create problems. This week’s photo quiz offers several presentations to test your knowledge.

Here: 5 questions that test your knowledge of gout, psoriasis, COPD, and dermatologic lesions.

Four photos, 5 short real-life cases: can you solve these 5 diagnostic mysteries?

Small and nondescript, subungual splinter hemorrhages should prompt further investigation.

Thin dark lines beneath the fingernails are the only physical findings of note in a middle-aged man who presents with cough, fevers, and arthralgias.

Diabetes has numerous signs, symptoms, comorbidities, and complications. Test your knowledge of this complex condition.

The symptoms of a nervous system disorder often resemble those of other medical conditions or problems. Test your understanding and diagnostic skills here.