Arterial impressions on the stomach.

Area of Science:

• Radiology
• Gastroenterology
• Anatomy

Background:

• The posteromedial aspect of the stomach is susceptible to extrinsic impressions from adjacent vascular structures.
• Age-related changes in vascular anatomy can alter the prominence of these impressions.

Observation:

• The splenic artery, particularly when tortuous or aneurysmal, commonly creates a contour defect on the stomach's posteromedial wall.
• The aorta can also produce a similar gastric impression.

Findings:

• These vascular impressions can be mistaken for gastric neoplasms on imaging studies.
• The prominence of the defect correlates with the degree of vascular tortuosity or aneurysm.

Implications:

• Accurate identification of these normal anatomical variants is crucial to avoid misdiagnosis of gastric tumors.
• Awareness of these findings can prevent unnecessary invasive procedures, such as exploratory surgery.