The CXC chemokine receptor type 4 (CXCR4), which is a G protein-coupled receptor expressed on the surface of the cell membrane, contributes to the development and progression of malignancies and functional endocrine disorders. CXCR4 expression has been reported to be upregulated in aldosterone-producing adenomas and cortisol-producing adenomas; however, its expression is almost negligible in non-functioning adrenal adenomas. Besides, CXCR4 is also hardly expressed by the tumor cells in paragangliomas. 68Ga-pentixafor, a CXCR4-specific PET tracer, may therefore be effective for the evaluation of the functional lateralization of adrenal lesion and identification of functional adrenocortical adenomas. In this pilot study, we aimed to develop 68Ga-pentixafor PET/CT as a noninvasive test for the recognition of functional adrenocortical lesions and to help guide the management of patients with suspicious adrenal masses.
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The diagnosis efficiency
Timeframe: through study completion, an average of 2 year