PA Anatomy: Pelvis: Case 3

How can you tell these are bone windows? The only structures that stand out are the bones, and you can see lots of internal detail within each one of them. You can easily see the cortex (white line around the outer edge) and medulla for each bone.

How can you get oriented to location within the body? This is often tricky-try to find one structure you can identify, like the femoral head or some lumbar vertebrae. This will tell you you are in the region of the pelvis.

Contrast is present on both of these images. Try to identify it and decide how it got there. There is also a foreign object-see if you can identify it, since it is related to the contrast.