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

Publication date: Available online 9 May 2017
Source:Revista Española de Medicina Nuclear e Imagen Molecular
Author(s): A. Cabrera Villegas, B. González Juez, J.L. Llorente Pendás, M.C. Albornoz Almada, P. Santos Holgueras, I.E. Sanchez Rodriguez
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.



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