Visualization of metastases from colon carcinoma using an iodine 131-radiolabeled monoclonal antibody.
A murine monoclonal antibody that reacts with human colonic cancer (250-30.6) was labeled with radioactive iodine (131I) and the antibody was injected intravenously into 15 patients with known metastases originating from carcinoma of the colon (10 cases), malignant melanoma (1), breast (1), pancreas (1), hepatocellular carcinoma (1), and adenocarcinoma of unknown origin (1). Of the patients with metastatic colon carcinoma, there were 19 known deposits as judged by the techniques of clinical examination, x-rays, and scans obtained using sulpha-colloid. Of these 19 deposits, 17 (90%) were found using the 131I-labeled monoclonal antibody. In one case, the primary tumor, previously undiagnosed, was found. In only 1 of the 10 patients was tumor not found and this was due to the subsequent finding that the undifferentiated tumor did not react with antibody. Of the five patients who did not have carcinoma of the colon, three had negative scans, but two were positive. Thus, the technique of immunoscintography can readily detect both primary and metastatic tumors.
M J
MJ
Leyden
C H
CH
Thompson
M
M
Lichtenstein
J T
JT
Andrews
J R
JR
Sullivan
J R
JR
Zalcberg
I F
IF
McKenzie
D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000276:immunology / Q000556:secondary*; D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D001943:Breast Neoplasms / Q000276:immunology; D006528:Carcinoma, Hepatocellular / Q000276:immunology; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000276:immunology / Q000473:pathology; D000939:Epitopes; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000276:immunology / Q000556:secondary*; D008297:Male; D008545:Melanoma / Q000276:immunology; D008875:Middle Aged; D009362:Neoplasm Metastasis; D010190:Pancreatic Neoplasms / Q000276:immunology; D011877:Radionuclide Imaging; D013382:Subtraction Technique
D000911:Antibodies, Monoclonal; D000939:Epitopes; D007457:Iodine Radioisotopes