Stomach
Normal gross anatomy

Authors: Elliot Weisenberg, M.D. (see Authors page)

Revised: 22 November 2016, last major update July 2012

Copyright: (c) 2003-2016, PathologyOutlines.com, Inc.

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Cite this page: Normal gross anatomy. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/stomachnormalanatomy.html. Accessed December 7th, 2016.
Definition / General
  • 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

  • Cardia:
    • 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

  • Fundus:
    • Dome shaped proximal stomach

  • Body / corpus:
    • Remainder of stomach to incisura angularis

  • Incisura angularis:
    • Where stomach narrows before it joins duodenum

  • Antrum:
    • Incisura angularis to pyloric sphincter (3-4 cm)

  • Pylorus:
    • 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

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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