Tumor Location Detected with Radioactively Labeled Monoclonal Antibody and External Scintigraphy

Abstract
Murine teratocarcmomas were located in mice by external γ-ray scintigraphy with a 131 I-labeled monoclonal antibody specific to the tumors. The specificity of the method was increased by subtracting the radiation produced by a 123 I-labeled indifferent monoclonal antibody of the same immunoglobulin class as the tumor-specific antibody.