in 6 patients , the immunoscintigraphic demonstration of previously occult lesions contributed to the early detection of tumour recurrences . the major limitation of the method is the non-specific radioactivity accumulation in the liver , which prevents the detection of liver metastases . in cea-seropositive patients the fraction of imaged extra-hepatic tumour lesions is over 80 % .
C0023884
liver
C0494165
of liver metastases