A 64-year-old female presented to the surgical emergency unit with a day's history of right upper quadrant pain. Her physical examination revealed right upper quadrant tenderness with no rebound tenderness or muscular guarding. Other systemic findings were normal. Laboratory test showed leukocytosis of 17 × 10³/µL and elevated C-reactive protein of 51 mg/L (0–5 ml/L). Other laboratory values including serum amylase, bilirubin and transaminases were normal. Abdominal ultrasound revealed thickened gallbladder (GB) wall (4.7 mm) with a 25 mm gallstone. A diagnosis of acute calculous cholecystitis was made and intravenous fluid and antibiotic treatment were initiated. Laparoscopic cholecystectomy was considered after 48 h of observation. During surgery a standard 4-port technique was used after pneumoperitoneum using the Veress needle. GB wall was found to be inflamed with omental adhesions. Using the critical view of safety approach, the cystic artery and cystic duct were separately identified, clipped and transected. After careful dissection of the GB from the liver bed small amount of bile was observed oozing from a spot proximal to the ligated cystic duct stump. Irrigation of the spot revealed a small tear at what was thought to be the common hepatic duct. A 5-Fr drainage catheter (50 cm long, 1.4 mm in diameter) was placed into the opened duct and exteriorized through the mid-clavicular 5 mm port site for post-operative drainage. A tube cholangiography done on post-operative Day 7 showed duplication of the common hepatic duct proximal to the cystic duct stump with the injury occurring on the right-sided duct (Fig. ). A magnetic resonance cholangiopancreatography (MRCP) was taken which confirmed the presence of the duplicated common hepatic duct with the cystic duct stump distal to the duplication (Fig. ). No PBM was observed. Her post-operative course was uneventful with an average biliary drainage output of about 300 ml. Drainage tube was clamped on post-operative Day 9 and finally removed 4 weeks after surgery. No complication was observed and patient is currently doing well.
A 35-year-old female presented to a local hospital with a 3-month history of intermittent abdominal pain. Initial abdominal ultrasonography revealed cystic dilatation of the extrahepatic bile duct. A suspicion of choledochal cyst was made and was referred for surgical management. Her past medical history was unremarkable. She weighed 83 kg and was 164 cm tall, with body mass index of 30.9 kg/m2. Apart from mild right upper quadrant tenderness, her physical examination was unremarkable. Laboratory tests including liver and renal function tests, serum and urine amylase levels were normal. A magnetic resonance cholangio-pancreatography (MRCP) done showed a cystic fusiform dilatation of the common bile duct (CBD) extending into the right and left hepatic ducts (). No PBM was observed. The MRCP findings suggested type Ic CC. Without any further imaging, patient was scheduled for complete cyst excision with cholecystectomy and hepaticoenterostomy surgery. At laparotomy, the CBD was found to be fusiformly dilated. Bile samples were taken from the cyst and the gallbladder (GB) for amylase level essays. The GB was dissected from the liver bed and the cystic duct opened into the midportion of the cyst. After careful dissected of the cyst from surrounding vascular structures, the distal part entering the head of pancreas was noticed to be unaffected (). The distal part was transected just at the level of the head of pancreas and samples were taken for frozen section. Dissection at the hepatic hilum revealed two separate dilated ducts originating from the confluence of the left and right hepatic ducts and both entering into the cyst (). The two ducts were transected just distal to their origin from hepatic confluence to avoid confusing them as true right and left hepatic ducts (). The hepatic confluence was then opened to expose the true left and right hepatic ducts (). The dilated portions of the both hepatic ducts were transected and samples were taken for frozen section. A right and left hepaticojejunostomy reconstruction was done. No intraoperative cholangiogram was performed. Frozen section results of both the distal and proximal surgical margins were negative for malignancy. The amylase levels of both the cyst and GB were 47 031 and 44 770 U/L, respectively (normal serum amylase level: 25–110 U/L). Patient was discharged on postoperative Day 6. She is well with no evidence of malignancy after 23 months of follow-up.