Question:  A 27 year old male is involved in an altercation with another individual who struck him in the forehead with a tire iron.  On examination you note mild epistaxis and a depressed nasal dorsum and a positive bow string sign on the left.  CT is obtained which shows a large NOE fracture segment without comminution.  What class of NOE fracture does this represent?  [Answer will be posted with next week's new question]

Answer to last week's question, "To Lead Water" (April 18, 2016): 

Cochlear aqueduct.