Assessment of Therapeutic Effect of Sunitinib by 11C-Acetate PET Compared with FDG PET Imaging in a Patient with Metastatic Renal Cell Carcinoma

摘要

Although sunitinib shows a high response rate in patients with untreated metastatic renal cell carcinoma (mRCC), quite a few patients show no therapeutic effect. Therefore, it is crucial to distinguish the patients who respond to sunitinib from those who do not as early as possible after the administration of the therapy. We herein report a case of mRCC in which ¹¹C-acetate (AC) positron emission tomography (PET) showed an early therapeutic effect of sunitinib treatment 4 weeks after its administration.