Fig. 1
From: Hybrid imaging with [68Ga]PSMA-11 PET-CT and PET-MRI in biochemically recurrent prostate cancer
A 75-year old patient with biochemical recurrence of PCa referred to our institution for imaging. His PSA level at the time of examination was 4.1 ng/ml. Contrast enhanced-T1w fatsat (A) and DWI (b800; B) at the pelvic level show a 9 mm, rounded, right obturator lymph node with irregularly spiculated border and heterogeneous contrast agent enhancement (arrow, A) and distinct diffusion restriction with signal increase in the b800 image (arrow, B). The lymph node also exhibited signal decrease in the corresponding ADC map (not shown). In the fused hybrid modalities PET-CT (C) and PET-MRI (D), the lymph node also shows a focal, intensive [68Ga]PSMA-11 uptake, suggestive of metastatic involvement (arrow)