Phyllodes tumour in pregnancy: a case report.

Phyllodes tumour (cystosarcoma phyllodes) is a rare breast tumour that grows rapidly and to a relatively large size, especially during pregnancy. These tumours may be classified as benign, borderline or malignant. They have a high incidence of local recurrence but little tendency to metastasize to distant organs. The question of whether the tumour is hormone dependent remains unresolved. This report describes the case of a patient who had a phyllodes tumour that first became apparent in her 31st week of pregnancy. After enucleation and subsequent wide excision she remained tumour free through a second pregnancy. Although the follow-up period is short, it appears that subsequent pregnancy is not necessarily associated with recurrent or new disease for patients who have had their initial tumour completely excised. The goal for the management of these tumours is complete surgical excision.