Inflammatory pseudotumour of the infratemporal fossa visualized with 18F-FDG PET/CT

Rev Esp Med Nucl Imagen Mol. 2017 Nov-Dec;36(6):392-395. doi: 10.1016/j.remn.2017.02.011. Epub 2017 May 9.
[Article in English, Spanish]

Abstract

The inflammatory pseudotumour of the head and neck is a benign lesion, extremely rare outside the cranial orbits. A case is presented of an inflammatory pseudotumour not associated with the IgG4-related disease. The pseudotumour was found as a solitary mass in the infratemporal fossa of a young woman who complained of otalgia and hearing loss. A clear image of the lesion was obtained using an 18F-fluoro-deoxy-glucose (18F-FDG) PET. After the histopathological diagnosis, and treatment with corticosteroids, a second 18F-FDG PET was performed. The metabolic image had returned to normal, and the previously observed mass disappeared. A brief review is presented of the studies examining this type of lesion.

Keywords: (18)F-FDG; Fosa infratemporal; Inflammatory pseudotumour; Infratemporal fossa; PET/CT; PET/TC; Pseudotumor inflamatorio.

Publication types

  • Case Reports

MeSH terms

  • Female
  • Fluorodeoxyglucose F18*
  • Granuloma, Plasma Cell / diagnostic imaging*
  • Humans
  • Middle Aged
  • Positron Emission Tomography Computed Tomography*
  • Radiopharmaceuticals*
  • Zygoma

Substances

  • Radiopharmaceuticals
  • Fluorodeoxyglucose F18