FDG PET/CT findings in a rare case of giant fibrovascular polyp of the esophagus harboring atypical lipomatous tumor/well-differentiated liposarcoma

Clin Nucl Med. 2014 Mar;39(3):288-91. doi: 10.1097/RLU.0000000000000358.

Abstract

A 70-year-old man with a history of chronic lymphocytic leukemia (CLL) underwent FDG PET/CT scan, which revealed a large polypoid soft tissue lesion in the esophagus with peripheral FDG avidity. An endoscopic biopsy revealed inflammatory changes with scattered CLL cells. The final histopathology demonstrated an 18-cm long and 4-cm wide giant fibrovascular polyp that was removed in 2 pieces. The polyp was composed of atypical adipose tissue with scattered giant cells and spindle-shaped cells as well as foci of CLL. Mouse double minute 2 homolog amplification was noted by fluorescence in situ hybridization diffusely in the giant polyp consistent with well-differentiated liposarcoma in a giant fibrovascular polyp.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Cell Differentiation
  • Contrast Media
  • Endoscopy
  • Esophagus / diagnostic imaging*
  • Esophagus / pathology
  • Fluorodeoxyglucose F18*
  • Humans
  • Lipoma / diagnostic imaging
  • Lipoma / pathology*
  • Liposarcoma / pathology*
  • Male
  • Multimodal Imaging
  • Polyps / diagnostic imaging*
  • Positron-Emission Tomography*
  • Tomography, X-Ray Computed*

Substances

  • Contrast Media
  • Fluorodeoxyglucose F18