Among the 84 alternative radiotracer studies, CXCR4-targeted imaging (primarily 68Ga-Pentixafor) was most frequently investigated (35 publications), aligning with recent evidence demonstrating its utility in lymphoma subtypes with high CXCR4 expression, including marginal zone lymphoma and mantle cell lymphoma (32). Here, CXCR4 is linked to marginal zone lymphoma.