Transpyloric plane
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Transpyloric plane | |
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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. | |
Latin | planum transpyloricum |
Gray's | subject #286 1315 |
Dorlands/Elsevier | p_22/12644663 |
An upper transverse line, the transpyloric is located halfway between the jugular notch and the upper border of the symphysis pubis; this indicates the margin of the transpyloric plane, which in most cases cuts through the pylorus, 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:
- the fundus of the gallbladder
- the neck of the pancreas
- the origins of the superior mesenteric artery and portal vein
- the hila of the kidneys
- the root of the transverse mesocolon
- the duodenojejunal junction
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.