Fig. 1.

⁶⁸Ga-PSMA-ligand PET/CT demonstrating two different patients with small lymph node metastases and different intensity of tracer uptake. Both patients had GSC 7. According to our experiences and the histological analysis, even low ⁶⁸Ga-PSMA-HBED-CC accumulations in lesions outside the prostate gland have to be regarded as PCa-specific until proven otherwise. Red arrows point to lymph node metastases. Colour scales were automatically produced by the PET/CT machine. a CT of the first patient, b CT of the second patient, c fusion of PET and CT of the first patient, d fusion of PET and CT of the second patient