Hepatic hilum-type II choledochal cyst masquerading as gallbladder duplication

Area of Science:

• Gastroenterology and Hepatobiliary Surgery
• Congenital Anomalies
• Diagnostic Imaging

Background:

• Choledochal cysts and gallbladder duplication are rare congenital anomalies.
• While typically presenting in childhood, these conditions can manifest in adults.
• Differentiating type II choledochal cysts from gallbladder duplication preoperatively is challenging despite advanced imaging.

Observation:

• A case of type II choledochal cyst arising from the hepatic hilum was initially suspected as gallbladder duplication based on imaging.
• This presentation is unique and has not been previously reported in medical literature.
• The diagnostic dilemma posed a risk for intraoperative iatrogenic injury.

Findings:

• Successful surgical management of the type II choledochal cyst was achieved.
• The definitive treatment for choledochal cysts is surgical due to their malignant potential.
• Accurate diagnosis and surgical intervention are crucial for patient outcomes.

Implications:

• This case underscores the importance of considering rare differentials in hepatobiliary imaging.
• Highlighting the potential for misdiagnosis between choledochal cysts and gallbladder duplication.
• Successful management emphasizes the necessity of surgical intervention for choledochal cysts.