Position in which the left anterior (front) aspect of the body is
left anterior oblique
closest to the film. This may be either in the erect or
Patient lies on his or her left side; CR is directed
left lateral decubitus
left posterior oblique
Position in which the left posterior (back) aspect of the body
is closest to the film. This may be either in the erect or
Acronym for letter marker.
Stress fracture of a bone of the lower extremity (the heads
of the second and third metatarsals); the fracture develops
after repeated stresses, as seen in soldiers with no history
of trauma; also called fatigue fracture.
Toward the center or toward the midline of the body.
Projection in which the lateral aspect is closest to the film
medial lateral projection
and the medial aspect is farthest from the film, as in a
Also known as midsagittal
plane. Imaginary line
dividing body into equal right
and left halves along vertical
axis. Cranial reference
points for midsagittal plane:
protuberance (EOP) and the
Midpoint of the triangular area of the chin. Also referred to
as the mental protuberance.
mental meatal line
Line that connects the mental point and the EAM or tragus.
(See mental point)