Complementary Roles of 18F-FDG PET/CT and 68Ga-FAPI PET/CT in a Case of Cutaneous Angiosarcoma Uncovering Tumor Heterogeneity

Key Points

• This research aims to explore the complementary diagnostic capabilities of 18F-FDG PET/CT and 68Ga-FAPI PET/CT in cutaneous angiosarcoma.
• Case report describing the use of 18F-FDG PET/CT and 68Ga-FAPI PET/CT imaging modalities.
• Analysis of tumor heterogeneity through comparative imaging results.
• Both imaging techniques provided unique insights into tumor characteristics.
• 18F-FDG PET/CT revealed metabolic activity, while 68Ga-FAPI PET/CT highlighted fibroblast activation.
• Combined use improved understanding of tumor diversity and treatment planning.