Acute Cholangitis Masquerading Biliary Neuroendocrine Carcinoma: A Rare Twist to a Typical Presentation

Biliary neuroendocrine carcinoma (BNEC) develops in the biliary tract and is characterized by the presence of neuroendocrine cells and account for less than 1% of all malignancies. We present a patient with no significant risk factors of BNEC who presented with abdominal pain and jaundice. An endoscopic ultrasound with endoscopic retrograde cholangiopancreatography was concerning for neoplasm and less likely Mirizzi syndrome. Pathology revealed well-differentiated grade 3 large-cell neuroendocrine carcinoma of the common bile duct. BNEC has a poor prognosis with a reported 5-year survival rate of less than 20%, which is worse than other biliary tract malignancies such as cholangiocarcinoma. Additional cases and further studies of multimodal treatment are required in the future to improve prognosis. Providers should be aware of the risk factors of BNEC and consider the diagnosis when evaluating patients with the symptoms above.

The use of percutaneous-endoscopic rendezvous stenting in a patient with bile duct injury after cholecystectomy-and a unique complication requiring secondary endoscopic intervention

Bile duct injury (BDI) is a potentially devastating complication after cholecystectomy. Familiarity with the diagnosis and multidisciplinary treatment options is imperative. This report highlights the utility of the rendezvous stenting procedure in a high-risk patient and describes a rare complication involving stent misplacement through the surgical drain. This is a 96-year-old female patient who suffered a Strasburg Class D injury during cholecystectomy, repaired over a T-tube. The T-tube dislodged postoperatively. Endoscopic and transhepatic stenting attempts were unsuccessful. Ultimately, a rendezvous approach allowed successful deployment of a covered metal stent. The stent was inadvertently deployed through a side fenestration of a surgical drain and was explanted upon drain removal. Repeat endoscopic stent placement was successful. The patient recovered without further complication. Surgical drains near the BDI can become sources of unexpected complications. A higher index of suspicion and careful interpretation of procedural imaging studies may prevent this complication.