(11)C-acetate PET/CT in a case of recurrent hemangiopericytoma
Ian Jong1, Sirong Chen, Yim Lung Leung
1From the *Department of Nuclear Medicine & PET, Hong Kong Sanatorium & Hospital, Hong Kong, China; †Southern Health, Victoria, Australia; and ‡Medical Physics & Research Department, Hong Kong Sanatorium & Hospital, Hong Kong, China.
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.
