[The so-called minimal cancers of the breast (author's transl)].

In situ lobular carcinoma, intraductal carcinoma and papilliferous non-invasive carcinoma are three non-invading cancers that present clinically as the other malignant tumors of the breast. Between January 1, 1973 and August 31, 1976, ten patients were operated at the institut Bordet for such tumors. Surgical treatment varied between radical mastectomy according to Madden and partial mammectomy. Follow-up reveals no recurrence over periods extending from zero to three years. The choice of treatment depends on the histology and the probability of evolution of the actual cancer.