Recently, we generated radiolabeled HiP‐8 (64Cu‐labeled HiP‐8‐PEG11) as a tracer for PET imaging and demonstrated in a mouse xenograft model that radiolabeled Hip‐8 accumulated selectively into the HGF‐producing tumor rather than HGF‐non‐producing tumor. The gene discussed is HGF; the disease is neoplasm.