Primary Pancreatic Choriocarcinoma With Hepatic Metastases on 18F-FDG PET/CT

Pancreatic choriocarcinoma is a rare disease, and concurrent hepatic metastases have not previously been reported. We report a case of a 46-year-old woman with significantly elevated human chorionic gonadotropin β levels, and 18 F-FDG PET/CT demonstrated FDG-avid lesions in the pancreatic head, liver, and lymph nodes. The initial diagnosis of pancreatic choriocarcinoma with metastases was made and further confirmed by PET/CT-guided biopsy. 125 I seeds were then implanted to treat the pancreatic choriocarcinoma lesions, which effectively reduced the tumor size. New hepatic metastases have been observed after 5 months, and this case had an overall survival of 10 months.