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. 2023 Mar;64(3):379–385. doi: 10.2967/jnumed.122.263889

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FIGURE 4. — ⁶⁸Ga-RM2 maximum-intensity projection (A); ⁶⁸Ga-PSMA-617 maximum-intensity projection (B); hematoxylin, eosin, and saffron staining of histologic slice from prostatectomy of patient 7 with manual demarcation of tumor lesions (C); ⁶⁸Ga-RM2 transaxial PET/CT image (D); and ⁶⁸Ga-PSMA-617 transaxial PET/CT image (E). Anterior ISUP-3 lesion and right basal ISUP-2 lesion were seen on histology, with 2 small lesions < 0.1 cm³ (C). ⁶⁸Ga-RM2 PET/CT and ⁶⁸Ga-PSMA-617 PET/CT showed similar uptake on ISUP-3 lesion: SUV_max was 6.7 for ⁶⁸Ga-RM2 and 6.8 for ⁶⁸Ga-PSMA-617 (arrowheads). ⁶⁸Ga-RM2 was the only radiopharmaceutical able to detect ISUP-2 lesion well (arrows): SUV_max was 7.3 for ⁶⁸Ga-RM2 and 3.4 for ⁶⁸Ga-PSMA-617. HES = hematoxylin, eosin, and saffron.