[Immunodiffusion analysis of embryonic prealbumin in a tumorous tissue extract]

By immunodiffusion analysis the presence of embryonal prealbumin (EPA) in extracts of different tumors has been studied. EPA is most frequently detected in extracts of bone tumors (75.0%) with the titre up to 1 : 256 and in tumors of soft tissues (74.5%) also with the titre up to 1 : 256. The EPA immunochemical test is believed to be of value for monitoring tumors of the connective-tissue origin.