THE ETIOLOGY OF NEOPLASMS OF THE BREAST

Abstract

CLINICAL STUDY The following pages contain a report of the results of a study of 271 women who entered the Memorial Hospital primarily on account of some form of neoplastic disease of the breast. The special object of the analysis of these cases is to afford a rough test of the fitness of the conceptions derived from the preceding theoretical discussion for explaining the origin of a series of typical breast neoplasms. The material used, although relatively small, has been examined with considerable care and it is felt that such an approach by means of a detailed study of a few cases is essential in what must be looked on as a preliminary survey of a rather new field. The entire group of cases came under my direct observation while the patients were attending one of the outpatient clinics at the Memorial Hospital. The majority were questioned and examined during