Final answer:
Ga68 dotatate PET is a radiolabeled amino acid analog used in PET scans to detect neuroendocrine tumors.
Step-by-step explanation:
The radiolabeled PET tracer Ga68 dotatate is an analog of an amino acid. It is used in positron emission tomography (PET) scans to detect and visualize neuroendocrine tumors. Ga68 dotatate binds to somatostatin receptors on the surface of neuroendocrine tumor cells, allowing them to be detected by the PET scanner.