Fig. 5.

⁶⁸Ga-PSMA-11 positron emission tomography/magnetic resonance imaging (PET/MRI) from the only patient who had postsurgical prostate-specific antigen (PSA) persistence with free surgical margins in the PSMA group. ⁶⁸Ga-PSMA-11 PET/MRI studies in different moments of a 73-year-old patient with a T1c tumor, Gleason score 4 + 5 = 9 on biopsy, and initial PSA level of 25.6 ng/ml. (A) Staging PET showed the primary tumor with a high PSMA uptake (SUV_max 25) and a single PSMA-positive iliac internal lymph node (arrows). The patient underwent radical prostatectomy with extended pelvic lymph node dissection (R0, pN1, 1/25) but had PSA persistence (0.82 ng/ml). (B) Subsequent PET showed no suspicious lesion and the patient underwent salvage radiotherapy with a PSA drop to 0.35 ng/ml