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
(LAO)
recumbent position.
Patient lies on his or her left side; CR is directed
left lateral decubitus
horizontally.
left posterior oblique
Position in which the left posterior (back) aspect of the body
(LPO)
is closest to the film. This may be either in the erect or
recumbent position.
LM
Acronym for letter marker.
M
Stress fracture of a bone of the lower extremity (the heads
March fracture
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.
medial
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
lateral ankle.
Also known as midsagittal
median plane
plane. Imaginary line
dividing body into equal right
and left halves along vertical
axis. Cranial reference
points for midsagittal plane:
external occipital
protuberance (EOP) and the
glabella.
mental point
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.
(MML)
mental protuberance
(See mental point)
MD0962
A-6