To map EpCAM expression throughout the whole organism, we employed our newly established ROCKETS procedure to investigate the biodistribution of the monoclonal anti-EpCAM IgG2a antibody (clone G8.8R, conjugated with AlexaFluor750®) after i.v. application into the tail vein of wild-type C57BL/6 mice bearing a subcutaneous ectopic tumor (EpCAM-expressing pancreatic cancer cell line KPC-4662). The gene discussed is EPCAM; the disease is neoplasm.