Cholecystosonography--the junctional fold

Area of Science:

• Medical Imaging
• Gastroenterology
• Anatomy

Background:

• Gallbladder imaging frequently encounters anatomical variations.
• Accurate interpretation of gallbladder ultrasound (cholecystosonography) is crucial for diagnosis.

Purpose of the Study:

• To describe a specific gallbladder fold variant.
• To highlight potential diagnostic pitfalls in cholecystosonography.
• To emphasize the importance of recognizing normal variants.

Main Methods:

• Retrospective review of three cholecystosonography cases.
• Analysis of imaging findings on supine scans.
• Correlation with anatomical knowledge of the gallbladder.

Main Results:

• A fold along the posterior gallbladder wall at the body-infundibulum junction was observed.
• This fold was misinterpreted as a small polyp in one case.
• The same fold was misidentified as a calculus in two cases.

Conclusions:

• This posterior gallbladder wall fold is a normal anatomical variant.
• Familiarity with this variant can reduce misdiagnosis of polyps and calculi.
• Correct ultrasound scanning methodology is essential for accurate gallbladder assessment.