Transpyloric plane

Transpyloric plane
Surface lines of the front of the thorax and abdomen. (Transpyloric is top horizontal line.)
Front of abdomen, showing surface markings for duodenum, pancreas, and kidneys.
Details
Identifiers
Latin	planum transpyloricum
TA	A01.2.00.007
FMA	14608
Anatomical terminology []

The Transpyloric plane, also known as Addison's Plane, is an upper transverse line, located halfway between the jugular notch and the upper border of the pubic symphysis. It is also said to lie roughly a hand's breadth beneath the xiphoid process of the human sternum. The plane in most cases cuts through the pylorus of the stomach, the tips of the ninth costal cartilages and the lower border of the first lumbar vertebra.

The transpyloric plane is clinically notable because it passes through several important abdominal structures. These include:

Surface projections of the organs of the trunk, with transpyloric plane labeled at L1

Front view of the thoracic and abdominal viscera.
a. Median plane.
b. Lateral planes.
c. Trans tubercular plane.
d. Subcostal plane.
e. Transpyloric plane.

Front of abdomen, showing surface markings for arteries and inguinal canal.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)