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Phyllodes tumor

phyllodes tumor, phyllodes tumor ultrasound
Phyllodes tumors from Greek: phullon leaf, also cystosarcoma phyllodes, cystosarcoma phylloides and phylloides tumor, are typically large, fast-growing masses that form from the periductal stromal cells of the breast They account for less than 1% of all breast neoplasms


  • 1 Classification
  • 2 Presentation
  • 3 Treatment
  • 4 Spectrum
  • 5 References
  • 6 External links


Phyllodes tumors are a fibroepithelial tumor composed of an epithelial and a cellular stromal component They may be considered benign, borderline, or malignant depending on histologic features including stromal cellularity, infiltration at the tumor's edge, and mitotic activity1 All forms of phyllodes tumors are regarded as having malignant potential A large series from the MD Anderson Cancer Centre reported the incidence of each as benign 58%, borderline 12%, and malignant 30% Malignant phyllodes tumours behave like sarcomas and can develop blood-borne metastases Approximately 10% of patients with phyllodes tumours develop distant metastases and this can go up to 20% in patients with histologically malignant tumours2 The commonest sites for distant metastases are the lung, bone, and abdominal viscera Rare sites of metastasis like to parotid region have also been described3

They are classified as a fibroepithelial tumor by ICD-O, but not by MeSH

Women as young as 14 years old have developed the malignant form and it seems to be more aggressive in younger women4


Phyllodes tumor in mammography Anatomopathological results of phyllodes tumor

This is predominantly a tumor of adult women, with very few examples reported in adolescents Patients typically present with a firm, palpable mass These tumors are very fast-growing, and can increase in size in just a few weeks Occurrence is most common between the ages of 40 and 50, prior to menopause This is about 15 years older than the typical age of patients with fibroadenoma, a condition with which phyllodes tumors may be confused They have been documented to occur at any age above 12 yearscitation needed


The common treatment for phyllodes is wide local excision1 Other than surgery, there is no cure for phyllodes, as chemotherapy and radiation therapy are not effective The risk of developing local recurrence or metastases is related to the histologic grade, according to the above-named features Despite wide excision, a very high percentage of surgeries yielded incomplete excision margins that required revision surgery4 Radiation treatment after breast-conserving surgery with negative margins may significantly reduce the local recurrence rate for borderline and malignant tumors5 The authors of a 2012 study have derived a risk calculator for relapse risk of phyllodes tumors after surgery6


Phyllodes tumors are considered to be on a spectrum of disease7 that consists of fibroadenoma, fibroadenoma variant and benign phyllodes Some would extend the spectrum to include malignant phyllodes tumors and frank sarcomacitation needed


  1. ^ a b Tan BY, Acs G, Apple SK, Badve S, Bleiweiss IJ, Brogi E, Calvo JP, Dabbs DJ, Ellis IO, Eusebi V, Farshid G, Fox SB, Ichihara S, Lakhani SR, Rakha EA, Reis-Filho JS, Richardson AL, Sahin A, Schmitt FC, Schnitt SJ, Siziopikou KP, Soares FA, Tse GM, Vincent-Salomon A, Tan PH 2016 "Phyllodes tumours of the breast: a consensus review" Histopathology 68 1: 5–21 doi:101111/his12876 
  2. ^ Moffat CJ, Pinder SE, Dixon AR, Elston CW, Blamey RW, Ellis IO 1995 "Phyllodes tumour of the breast: a clinicopathological review of the thirty-two cases" Histopathology 27 3: 205–18 PMID 8522284 doi:101111/j1365-25591995tb00212x 
  3. ^ Sivaram, P; Jayan, C; Sulfekar, M S & Rahul, M 2015 "Metastatic Malignant Phyllodes Tumour: An Interesting Presentation as a Parotid Swelling" New Indian Journal of Surgery 6 3: 75–77 
  4. ^ a b Guillot, E; Couturaud, B; Reyal, F; Curnier, A; Ravinet, J; Laé, M; Bollet, M; Pierga, J Y; Salmon, R; Fitoussi, A; Breast Cancer Study Group of the Institut Curie 2011 "Management of Phyllodes Breast Tumors" The Breast Journal 17 2: 129–137 PMID 21251125 doi:101111/j1524-4741201001045x 
  5. ^ Barth RJ Jr; Wells WA; Mitchell SE; Cole BF 2009 "A prospective, multi-institutional study of adjuvant radiotherapy after resection of malignant phyllodes tumors" Ann Surg Oncol 16 8: 2288–94 PMID 19424757 doi:101245/s10434-009-0489-2 
  6. ^ This is available at wwwphyllodescom Tan PH, Thike AA, Tan WJ, Thu MM, Busmanis I, Li H, Chay WY, Tan MH 2012 "Predicting clinical behaviour of breast phyllodes tumours: a nomogram based on histological criteria and surgical margins" J Clin Path 65 1: 69–76 PMID 22049216 doi:101136/jclinpath-2011-200368 
  7. ^ Deen SA, McKee GT, Kissin MW 1999 "Differential cytologic features of fibroepithelial lesions of the breast" Diagn Cytopathol 20 2: 53–6 PMID 9951596 doi:101002/SICI1097-033919990220:2<53::AID-DC1>30CO;2-T 

External linksedit

  • Phyllodes Support Group Over 1000 members
  • Phyllodes Statistics Self-reported statistics from over 200 phyllodes patients
  • Phyllodes Tumor Group on Rare Cancer - We have over 180 members waiting to give you support and share information
  • Cystosarcoma Phyllodes
  • Phyllodes Tumor Recurrence Risk Assessment Calculator

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Phyllodes tumor

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    Phyllodes tumor beatiful post thanks!


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