Multicystic Biliary Hamartoma With Xanthogranulomatous Inflammation on 18F-FDG PET/CT

Clin Nucl Med. 2022 Oct 1;47(10):882-884. doi: 10.1097/RLU.0000000000004204. Epub 2022 Apr 27.

Abstract

A 70-year-old man with a liver tumor was pathologically diagnosed with multicystic biliary hamartoma with xanthogranulomatous inflammation. Plain CT revealed an inhomogeneous low-density liver tumor, measuring 43 × 35 mm. Dynamic contrast-enhanced CT revealed a cyst, measuring approximately 15 mm, with a ring-shaped enhancement, within the tumor. There was delayed enhancement on the outer portion of the tumor. Mild peripheral bile duct dilation was also observed. 18F-FDG PET/CT showed focal high uptake with an SUVmax of 5.2 near the cyst. The findings of this case mimicked that of intrahepatic cholangiocellular carcinoma.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Bile Duct Neoplasms* / pathology
  • Bile Ducts, Intrahepatic / pathology
  • Cysts*
  • Fluorodeoxyglucose F18
  • Gastrointestinal Neoplasms*
  • Hamartoma* / complications
  • Hamartoma* / diagnostic imaging
  • Hamartoma* / pathology
  • Humans
  • Inflammation / complications
  • Inflammation / diagnostic imaging
  • Inflammation / pathology
  • Liver Neoplasms* / pathology
  • Male
  • Positron Emission Tomography Computed Tomography

Substances

  • Fluorodeoxyglucose F18