Adenocarcinomas (Figures 2 and 3) are most often found in the gastric cardia (31%), followed by the antrum (26%), and body of the stomach (14%). Figure 2. A, Endoscopic image of an ulcerating adenocarcinoma; B, ulcerating adenocarcinoma.
What is gastric cardia and fundus?
Cardia: the first part, which is closest to the esophagus. Fundus: the upper part of the stomach next to the cardia. Body (corpus): the main part of the stomach, between the upper and lower parts.
What is fundus and antrum?
Located inferior to the diaphragm, above and to the left of the cardia, is the dome-shaped fundus. Below the fundus is the body, the main part of the stomach. The funnel-shaped pylorus connects the stomach to the duodenum. The wider end of the funnel, the pyloric antrum, connects to the body of the stomach.
What is the difference between cardia and pylorus?
The key difference between cardiac and pyloric sphincter is that cardiac sphincter is present at the upper portion of the stomach and closes off the top end of the stomach while pyloric sphincter is present at the lower end of the stomach and closes off the bottom of the stomach.
What is gastric cardia?
The gastric cardia is a microscopic zone that is normally found in the most proximal portion of the stomach, although cardiac-type mucosa may arise in the distal esophagus as a metaplastic phenomenon secondary to gastroesophageal reflux disease (GERD).
What is fundus in endoscopy?
In the fundus can be seen the lesser curvature. Just beyond the antrum is the pylorus emptying into the first portion of duodenum is at the lower right. The normal appearance of the gastric fundus on upper GI endoscopy is shown below at the left, with the normal duodenal appearance at the right.
Is the antrum part of the pylorus?
The pyloric antrum is the lower or distal portion above the duodenum. The opening between the stomach and the small intestine is the pylorus, and the very powerful sphincter, which regulates the passage of chyme into the duodenum, is called the pyloric sphincter.
What is the cardia?
(KAR-dee-uh) The part of the stomach that is closest to the esophagus. Food and liquids pass through the cardia to enter the stomach from the esophagus.
What is antrum pylorus?
Antrum. The pyloric antrum is the initial portion of the pylorus. It is near the bottom of the stomach, proximal to the pyloric sphincter, which separates the stomach and the duodenum.
What is the main function of the pylorus?
The pylorus is a valve that opens and closes during digestion. This allows partly digested food and other stomach contents to pass from the stomach to the small intestine.
What is the difference between the fundus and the plyloric antrum?
The plyloric antrum is the distal part of the stomach that grinds up swallowed food and regulatesthe hydrochloric acid that’s produced by the fundic and body parietal cells. The fundus is the section of stomach that forms a distensible, blind pouch that expands as more food is swallowed.
What is the function of the cardia sphincter and fundus?
The cardia sphincter helps reduce reflux of stomach contents back up into the esphogus. The orientation of the esophagus as it enters the stomach also provides a natural closure for the cardia as the stomach fills and distends. The fundus is the section of stomach that forms a distendible, blind pouch that expands as more food is swallowed.
What is the difference between fundus and Cardia?
The cardia is a 1–2 cm segment distal to the esophagogastric junction. The fundus refers to the superior portion of the stomach that lies above an imaginary horizontal plane that passes through the esophagogastric junction. The antrum is the smaller distal, one-fourth to one-third of the stomach.
Where does the pyloric antrum secrete hydrochloric acid?
It travels, among other places, to the gastric glands in the proximal part of the stomach, where it stimulates the release of hydrochloric acid from the parietal cells. Like the gastric gland in the fundus and body, the gastric glands in the pyloric antrum also contain many mucous cells.
