Challenges in management of phyllodes tumors of the breast: a retrospective analysis of 150 patients

Indian J Cancer. 2013 Oct-Dec;50(4):345-8. doi: 10.4103/0019-509X.123625.

Abstract

Introduction: Phyllodes tumors (PT) of the breast seem to get pre-operatively misdiagnosed as fibroadenomas resulting in inadequate resections and high local recurrence rates.

Materials and methods: Data of 150 patients with PT of the breast managed from January, 2003 to February, 2013 were retrospectively analyzed. Statistical analysis performed using SPSS version 17 (Pearson Chi-square test and analysis of variance test for analysis).

Aim: The aim of this study is to compare clinico-pathological profile and recurrence rates in patients with benign (B), borderline malignant (BL) and malignant (M) PT.

Results: In a total of 150 patients with PT (n = 77 B, n = 24 BL, n = 49 M), mean age was 36.92, 44.04 and 40.46 years respectively (P 0.015) and mean tumor size being 8.15 cm, 14.7 cm and 12.9 cm respectively (P 0.000). Pre-operatively cytology suggestive of PT in 24% patients with B PT and 63% in M PT; core tissue biopsy suggestive of PT in 85.4% patients with B PT and 100% in M PT. Recurrence seen in 34.7% out of which 32.7% were post-lumpectomy performed elsewhere. Majority of B PT had lumpectomy (49.3%)/wide local excision (WLE, 31.2%) compared with M PT where 55.1% had simple mastectomy (SM) due to large tumor size. Local recurrence was more in M PT (53%) compared with B PT (20%). We found recurrence rates in L (39.3%) compared with WLE (27.3%) and SM (33.9%) (P 0.049).

Conclusions: Larger tumor size, incomplete resection and M/BL histology predicted higher recurrence in PT. Core biopsy is much more accurate than fine needle cytology in the diagnosis.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Breast Neoplasms / drug therapy
  • Breast Neoplasms / pathology
  • Breast Neoplasms / radiotherapy*
  • Breast Neoplasms / surgery
  • Diagnostic Errors
  • Female
  • Humans
  • Mastectomy
  • Middle Aged
  • Neoplasm Metastasis
  • Neoplasm Recurrence, Local / drug therapy
  • Neoplasm Recurrence, Local / pathology
  • Neoplasm Recurrence, Local / radiotherapy*
  • Neoplasm Recurrence, Local / surgery
  • Phyllodes Tumor / drug therapy
  • Phyllodes Tumor / pathology
  • Phyllodes Tumor / radiotherapy*
  • Phyllodes Tumor / surgery
  • Retrospective Studies