Both hemidiaphragms should be visible in both PA and lateral views.
The right hemidiaphragm is at a higher level due to the congenital position of the heart, and not due to the liver.
Dome peaks in the center.
Markings representing attachment to the ribs are normal.
Seen in its entirety
Right oblique fissure touching
Projects outside: Phenomenon of beam divergence
Not seen in its entirety because of the heart resting on diaphragm: Silhouette sign
Stomach bubble under
Left oblique fissure touching