An unexpected cause of common bile duct obstruction diagnosed by endoscopic ultrasound guided fine-needle biopsy.

A 43-years-old woman with previous cholecystectomy presented as an outpatient with abnormal liver tests. A diagnosis of well-differentiated neuroendocrine tumor (NET) was made and a 68Ga-DOTA-somatostatin analogue positron emission tomography revealed no apparent metastatic disease.