Multiple primary malignant neoplasms.I. Introduction and presentation of data

nor so rigid that the practical clinical value attributed to Billroth and perpetuated through of the study is lost.the literature: 1, each tumor must have a dif-T h e following criteria have been erroneously ferent histological appearance; 2, the tumors TABLE 3 MULTIPLE PRIMARY MALIGNANT NEOF'LASMS OF MULTICENTRIC ORIGIN No. cases Site, type, & no.malig.neoplasm No. cases Site, type, & no.malig.neoplasm Same tissue (455 cases) Colon & rectum adenoca. 2 les. 3 les.4 les.5 les. 2 les. 3 les. 2 les. 3 les. 2 les. 3 les.4 les. 2 les. 3 les. 2 les.