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Normal gross anatomy

Reviewers: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 25 July 2012, last major update July 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.


● Normal volume is 1.5 liters, capacity is 3 liters, potentially more
● Fine mosaic-like pattern of mucosa because of punctuations by gastric pits or foveolae
● Longitudinal infoldings of mucosa and submucosa known as rugae are coarser proximally and when stomach is empty

● Narrow conical portion distal to gastroesophageal junction
● Many authors claim that cardiac mucosa is reflux-associated epithelia and not normally present
● Of note in the AJCC Cancer Staging Manual, 7th Edition (2010), carcinomas of the esophagus and esophagogastric junction (the proximal 5 cm of the stomach) are staged identically

● Dome shaped proximal stomach

● Remainder of stomach to incisura angularis

Incisura angularis:
● Where stomach narrows before it joins duodenum

● Incisura angularis to pyloric sphincter (3-4 cm)

● Muscular ring that controls flow of food content into proximal duodenum

Lesser curvature:
● Medial curvature of stomach on the right

Greater curvature:
● Lateral curvature of stomach

Gross images

Normal appearance of the stomach, opened along the greater curvature

Normal appearance of the gastric antrum extending to the pylorus at the right of center

Additional references

AJCC Cancer Staging Manual, 7th Edition (2009): Springer

End of Stomach > Normal gross anatomy

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