Management of Benign Phyllodes Tumor With Close Margins: A Case Presented in Multidisciplinary Session With Clinical Discussion and Decision Making

Background: Phyllodes tumors (PTs) are a small group of fibroepithelial breastlesions, which are classified as benign, borderline, or malignant. Traditionally, amargin of ۱ cm has been suggested as the standard of care for all groups of PTs.According to new studies and recent updates, the recurrence rate of benign PT is lowand not associated with the surgical margin status. There is still a controversy for PTsurgical margin. Case Presentation: A woman with the primary diagnosis of fibroadenoma incore needle biopsy underwent surgery. The pathology report showed benign PT andmargins about ۱ mm in some areas. This case was presented in the weekly breastmultidisciplinary team session of the Department of Breast Surgery, TehranUniversity of Medical Sciences.Question: The question was whether re-excision was necessary to achieve thesafe surgical margin. Conclusion: In accordance with the latest published evidence, the members ofthe panel decided to accept the margin, informed the patient about the risk ofrecurrence, and recommended close follow-up.

Keywords:

Phyllodes tumor , breast tumor , close margin , multidisciplinary team decision