PA X-ray
PA X-ray An X-ray picture in which the beams pass from back to front (posteroanterior), as opposed to an AP (anteroposterior) film, in which the rays pass through the body from front to back.
PA X-ray An X-ray picture in which the beams pass from back to front (posteroanterior), as opposed to an AP (anteroposterior) film, in which the rays pass through the body from front to back.