Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
FIG. 2. Computed tomography scan 1 hour after creation of a burr hole on the wrong side and a burr hole made on the correct side to drain a left subdural hematoma. Blood and air are visible in the left subdural space. The arrow points to a residual drop of subdural air at the site of the wrong-sided (right) burr hole.
