Experimental: before-after study in the same patient

This is a prospective, open-label, single-center clinical study for hematological malignancies. 120 patients confirmed by pathology of having NHLs or myeloma were included. Qualified subjects underwent 18F-FDG and 68Ga-Pentixafor PET/CT scans within 7 days after recruited. Patient medical history was collected and laboratory tests were performed before the examination, and a biopsy or surgery was performed to obtain pathological results within 1 month after the examination, followed by a 6-month follow-up. The pathological results were used as the diagnostic gold standard.