Head trauma...so we're worried about bleeding, fracture.

Let's ignore the bones for now.

There was no subarachnoid blood.

You can see what appears to be possibly white bone bulging into the brain on this slice.

Turning the brightness/contrast down a little reveals the acute subdural hematoma and gives you a better sense of its size. Scroll through the scan and see how the acute subdural is now clearly delineated from the bone.

Think of it like this:

If an acute subdural hematoma is a possibility, you are NOT DONE LOOKING at the scan UNTIL you have turned the brightness and contrast down.

There was no other kind of intracranial hemorrhage on this scan. This bright spot is a calcification of the vertebral artery. These bright specks here and here are also calcifications.

We can make a heuristic that looks like this:

In the setting of: Trauma and you're worried about a subdural,

Do this: Turn the brightness & contrast down,

And look here: _______________

Go back to that website and let's look at another scan.