title: 18F-FDG PET/CT of Primary Mediastinal Hepatoid Adenocarcinoma.
abstract: Hepatoid adenocarcinoma is a rare extrahepatic tumor that shows clinicopathologic and morphologic similarities to hepatocellular carcinoma. An FDG PET/CT imaging of primary mediastinal hepatoid adenocarcinoma in a 43-year-old man who had an elevated serum alpha-fetoprotein level was reported in this case. The patient's mediastinal lesion had avid FDG uptake. Hepatoid adenocarcinoma should be considered among the differential diagnoses when an FDG-avid extrahepatic mass is seen in patients with increased alpha-fetoprotein.
authors.affiliation: From the *PET/CT Center, †Department of Pathology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China; and ‡Molecular Imaging Program at Stanford, Department of Radiology and Bio-X Program, Canary Center at Stanford for Cancer Early Detection, Stanford University, Stanford, CA.
authors.forename: Na
authors.initials: N
authors.lastname: Hu
authors.forename: Yanlin
authors.initials: Y
authors.lastname: Tan
authors.forename: Jiadi
authors.initials: J
authors.lastname: Luo
authors.forename: Zhen
authors.initials: Z
authors.lastname: Cheng
authors.forename: Yunhua
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging*; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging*; D008875:Middle Aged; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18