The authors also reported that the chemokine receptor levels remained virtually unchanged in patients, with no associated uptake differences between primary and metastatic foci, indicating that CXCR4-targeting imaging could serve as a powerful tool for screening patients with solid tumours.153 Specifically, 10 of 14 patients with advanced multiple myeloma (MM) presented manifestations of MM after [68Ga]Ga-Pentixafor PET/CT scans, whereas nine patients were visually positive on [18F]FDG PET/CT scans, suggesting that [68Ga]Ga-Pentixafor is more advantageous for the clinical diagnosis of MM.154. Here, CXCR4 is linked to Miyoshi myopathy.