Syndrome of primary multiple endometrial, breast, ovarian and colon adenocarcinoma.

Incidence, manifestation time and treatment results were studied in 356 patients with synchronous and metachronous primary multiple tumours, who made 4.4% of 8065 primary patients with endometrial (1400), breast (5450) and ovarian (1215) cancer. 244 of 356 polyneoplasia patients (68.5%) had adenocarcinoma of the mentioned sites colon. Risk factors for the appearance of polyneoplasia were established. After the radical treatment, polyneoplasia prognosis was not generally worse than that of solitary tumours.