[Phyllode tumors: anatomoclinical and therapeutic aspects (5 clinical cases)]

The phyllodes tumour is a bi-tissular mammary tumour. It is essentially benign but potentially sarcomatous, presenting multiple clinical and histologic-aspects, and raises difficult problems of diagnosis and therapeutic attitude. Four histological types are described, from the adenofibromatous type to the sarcomatous one. The notion of local malignancy is discussed, related to the marked recidivating character of the tumour. The morphologic substrate of the recidivating character is the result of the absence of a true capsule of the tumour. The treatment is differentiated according to the clinic, histologic, and recidivating aspects, and consists in either sectorectomy or breast amputation. Five cases are presented, of phyllodes tumour, each of them with particular characteristics of evolution, and imposing differentiated therapeutic attitudes.