All Quizzes

The young athlete is otherwise healthy but his ECG tracing and family history may suggest a different story.

Blepharitis caused by lice; lung cancer in former smokers; infection in chronic kidney disease. . . . here: 5 questions on 5 different disorders to challenge you again this week.

Pain has a wide variety of presentations, often making the diagnosis a significant challenge. Test your knowledge of signs and symptoms in this week's photo quiz.

Here: 5 cases submitted by your colleagues: see if you know what the findings in each case indicate.

The topics this week range from superficial to visceral, and from head to spleen. See if you can answer all 5 questions.

Discitis, a bacterial infection within the vertebral disc, typically results from seeding during an episode of bacteremia.

A 46-year-old man with a history of HIV infection presents to the emergency department for left flank pain. A lateral x-ray film of the patient’s lumbar spine is shown. What is the diagnosis?

Bites from various bugs can resemble one another and cause symptoms similar to those of a variety of disorders. Test your knowledge in this week's photo quiz.

Obesity, a health hazard in its own right, is linked with heart disease, diabetes, and a wide range of other clinical concerns. This week’s photo quiz offers a variety of presentations to test your diagnostic acumen.

Only one agent can be used for anticoagulation in individuals with mechanical valves.