SSTR2 and neoplasm: In eight cases, IHC was negative (three biopsies and five surgical samples) while SSTR-PET/CT was positive with tumor uptake lower than liver uptake in seven of these cases (4 TC/NET-G1 and 3 AC/NET-G2) and high tracer uptake (Krenning score = 3) in one AC/NET-G2 displaying SSTR2-IHC score 1.