SONOWORLD : Congenital duplication of gallbladder

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Abdomen » Liver & Biliary System

Congenital duplication of gallbladder

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Author(s) :

Ravi Kadasne, MD

Presentation This was an incidental finding detected on ultrasound. The patient was being scanned for ureteric calculi.

Caption: Sagittal image of the right upper quadrant

Description: Two gallbladders are noted, having nearly mirror image shapes.

Caption: Transverse images right upper quadrant

Description: In these images the two gallbladders appear to arise from a common cystic duct.

Caption: Oblique image of the right upper quadrant

Description: This image demonstrates that the two gallbladders are separate and lie adjacent to each other in the gallbladder fossa.

Caption: Follow up scan of the patient after a fatty meal

Description: This image shows the normal physiological contraction of both the gallbladders after a fatty meal. [compare with image 1 and 2]

Differential Diagnosis Congenital duplication of gallbladder, septate gallbladder

Final Diagnosis Congenital duplication of gallbladder

Discussion This case illustrates an incidental finding of duplicated gallbladder. Adequate mapping and documentation of the presence of a single or double cystic duct could not be performed as the patient was in acute pain due to a ureteric calculus. Therefore, this duplicated gallbladder demonstrated in this case could be either a bilobed gallbladder [if there was a single cystic duct] or could be a double gallbladder [if two spearete cystic ducts were demonstrated].

Follow Up This patient was rescanned following a fatty meal as shown, and demonstrated contraction of both the gallbladders.