A 2 yo male presents refusing to bear weight on his right leg.  There is no known trauma.  Parents report he is very active and playful with older siblings.  He has focal tenderness over the distal tibia.  No fever and no pain with range of motion at the hip.  What's the diagnosis?  (scroll down for answer)

Answer: Toddler's Fracture

23 yo male presents with hand pain.  He reluctantly admits to punching a wall during a fight with his girlfriend.  Exam reveals focal swelling and tenderness of right hand.  What's the diagnosis?  (scroll down for answer)

Answer: Boxer's Fracture 

A 53 yo female presents with acute onset of sharp abdominal pain 

A 23 year old male with a history of IVDU presented with pleuritic chest pain.