Gnarly Nails in a Four-year old Boy

This case of "gnarly nails" takes you back to Physical Diagnosis 101. Do you recall the causes of pitting, clubbing and lines?

This case of a young boy with disruption in growth of his nails and hair is a good test of your physical diagnosis skills as well as a reminder of essential questions to cover in the history. What do you remember about nail abnormalities? What would you include in your differential diagnosis?Follow the clues in the slides above through Dr Jonathan Schneider's most recent diagnostic challenge.