At age 4 years, this young girl’s hair is falling out for the second time after growing back completely. She is otherwise healthy. Watch the video and make your diagnosis.

The child is alert and able to speak. Physical examination reveals abdominal contusions and inguinal lacerations. The abdomen is distended and painful to the touch. Watch the video, review the history, and make your diagnosis.

For a young man with eosinophilic esophagitis, which potential allergen is most likely the cause of his symptoms?

Cystic pancreatic lesions fall into several categories. Some are indolent and can be followed; others are precancerous.

Portal vein thrombosis is often an ominous sign. What next for this patient with HCV cirrhosis?

The 15-year-old presents with a sore throat, congestion, and malaise. Her mother, afraid she will infect her siblings, requests a strep test. Review the history, watch the video exam. What’s your diagnosis?

Accompanying vomiting and fever raised suspicion for appendicitis and a CT scan of the abdomen and pelvis was ordered. Watch the ED video, review the history, and make your diagnosis.

X-rays offer no clue to the cause of dyspnea in this teen who cannot take a deep breath after crashed on his bicycle. Watch the short video, read the clues, and make your diagnosis.

What’s the underlying cause of current cellulitis in this morbidly obese man?

Check your VIS IQ with a few frequently asked questions about CDC regulations governing distribution of vaccine information statement sheets.

Ablation therapy may be an option for these two patients with heart disease. What is your recommendation? And, does the evidence support it?

To give the meningococcal B vaccine or not to give it?

You’re on second base, batter’s up; coaches on 2 and 3 give crossed signals; the owner glares from his box. Substitute pharma, the FDA, and ACIP and it may feel the same.

What figures into your differential of a slowly enlarging asymptomatic plaque, like the one on this child's hand?

There are several “do-it-yourself” colon cancer screening tests available. But do any of them approximate the sensitivity of the gold standard colonoscopy?