11C-Acetate PET/CT in a Case of Recurrent Hemangiopericytoma

Authors:
  • SCSirong Chen
    Sirong Chen
  • YLYim Lung Leung
    Yim Lung Leung
  • SCShing Kee Cheung
    Shing Kee Cheung
  • CHChi-Lai Ho
    Chi-Lai Ho
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Abstract
Intracranial hemangiopericytoma (IHPC) is a rare tumor representing less than 1% of all CNS tumors and is often indistinguishable from meningioma on structural imaging alone. Unlike meningioma, IHPC is an aggressive tumor with the propensity for early locoregional recurrence and distant metastases. Hence, its management strategies differ greatly from that of meningioma. Some investigators have reported the potential role of multitracers (F-FDG, C-methionine, and O-H2O) PET imaging in distinguishing IHPC from meningioma. We described the findings of dual-tracer (C-acetate and F-FDG) PET/CT imaging in a histopathologically proven case of IHPC with extensive extracranial osseous metastases that showed significantly greater C-acetate avidity.