Management of Choledochal Cyst of Cystic Duct in Adult: A Very Rare Case Report

Choledochal cyst is a rare congenital biliary anomaly, with the cystic duct variant being extremely uncommon and often difficult to diagnose due to nonspecific symptoms. This case report highlights a rare occurrence of a cystic duct choledochal cyst in an adult. We collect patient’s data through examination reports, hospitalization and surgery reports documented in the medical record. Patients presented with fever, epigastric pain, nausea, and reduced oral intake, with tenderness in the epigastric and right hypochondriac regions. Imaging confirmed a cystic duct choledochal cyst, a CBD stone, and a liver abscess, prompting initial ERCP for stone clearance and stent placement, followed by laparoscopic cholecystectomy, cyst excision, and abscess drainage. The patient recovered well postoperatively. Choledochal cysts are rare in adults and often present with nonspecific symptoms such as abdominal pain, fever, and jaundice, making diagnosis challenging. Imaging modalities like MRCP and MDCT play a crucial role in identifying cystic duct cysts and associated biliary abnormalities, while early diagnosis is essential due to the risk of complications, including cholangitis, cirrhosis, and malignancy. The preferred treatment involves complete cyst excision, cholecystectomy, and biliary reconstruction, with surgical approach depending on factors like cyst anatomy and associated anomalies, followed by long-term monitoring to prevent complications. A cystic duct choledochal cyst complicated by a CBD stone and liver abscess, emphasizing the importance of early diagnosis and surgical intervention to prevent serious complications.