Immune Complexes and Human Cancer, the fifteenth volume of Contem- porary Topics in Immunobiology, is a compilation of information derived from recent studies on the role of circulating immune complexes (CIC) in the patho- genic manifestations of a variety of human cancers. Technical improvements in the detection of CIC in body fluids have resulted in data that indicate that CIC do occur in different types of cancer. In addition, tumor-associated antigens and antibodies have been detected in immune complexes of cancer patients' sera. Until recently the exact role and clinical relevance of...