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Intraindividual Tumor Heterogeneity in Neuroendocrine Tumors Revealed with 18F-FDG and 68Ga-DOTA-TATE PET/CT
Journal of Nuclear Medicine & Radiation Therapy
68 Ga-DOTA-TATE PET/CT is widely used in functional imaging of neuroendocrine tumors (NETs) and is superior to conventional somatostatin receptor scintigraphy (SRS), which is recommended for low grade NETs according to NANETS/ENETS guidelines. On the contrary 18 F-FDG PET is suggested in patients with high grade NETs or when SRS is negative. However, tumor heterogeneity is a common finding along with NETs and causes differential expression of somatostatin receptor (sstr) and various FDGdoi:10.4172/2155-9619.1000277 fatcat:iwetd44v5bamdpcr7v7n2biuf4