Multiple primary neoplasms. Considerations on 42 cases.

During the years 1977-1993, 2,108 cases of gynecologic primary neoplasms were observed in the Department of Gynecology and Obstetrics of La Sapienza University in Rome. Forty-two cases were multiple primary cancers. Of these, 27 had multiple primary neoplasms involving only gynecologic sites, 15 had a neoplasm involving also another site; 3 patients had triple primary neoplasms. The most frequent neoplasm associations observed in our case series were: breast-ovary; endometrium-ovary; breast-cervix; endometrium-bowel (sigma-colon).