The Relationship between Dosage Level and the Incidence of Recurrence in Post-operative Irradiation for Carcinoma of the Breast

The results of treatment are given in a series of 184 cases of carcinoma of the female breast treated by mastectomy and post-operative irradiation. The recurrence rate within the treated area during the period of observation was 21 percent. The cases were grouped according to the dosage received and the recurrence rates in the various groups were compared. No statistically significant difference was observed, but the results showed a tendency towards better results in the higher dosage groups, particularly when the grouping was done according to the dose to the apex of the axilla.