Antral and esophageal rimple: a normal variation

Area of Science:

• Gastroenterology
• Anatomy

Background:

• The muscularis mucosa, a thin layer of smooth muscle, lines the gastrointestinal tract.
• Fine rimpling in the antrum and esophagus can be observed during endoscopic procedures.

Purpose of the Study:

• To investigate the cause of fine antral and esophageal rimpling.
• To determine the clinical significance of these mucosal folds.

Main Methods:

• Endoscopic observation of antral and esophageal mucosa.
• Assessment of fold behavior during luminal distention.

Main Results:

• Fine antral and esophageal rimpling were observed.
• These folds disappeared upon distention of the lumen.
• The pattern suggests muscularis mucosa contractions.

Conclusions:

• Fine antral and esophageal rimpling result from muscularis mucosa contractions.
• These folds are a normal finding and have no pathologic significance.