123I radioiodinated antibody imaging of occult ovarian cancer

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Abstract
A monoclonal antibody HMFG2 labeled with iodine 123 (123I) was given to a patient who had ovarian cancer. The scan taken 18 hours after administration of the antibody demonstrated the presence and the position of residual tumor in the pelvis that was not previously detected by ultrasonography and computerized tomography (CT) scanning. The presence of tumor was confirmed by surgery and histologic as well as immunoperoxidase examination of resected tissues. The tumor mass found was less than 0.8 cm in diameter. It is concluded that, in the search for residual or early ovarian cancer in the pelvis, monoclonal antibody scanning using 123I‐labeled HMFG2 can complement ultrasonography and CT scanning.