Mesenchymal and Fibroepithelial Tumors of the Breast

  • Ekrem YavuzEmail author
  • Sitki Tuzlali


Benign mesenchymal tumors that occur elsewhere in the body have been described in the breast, including lipoma, angiolipoma, leiomyoma, neurofibroma and schwannoma. Malignant mesenchymal tumors of the breast other than angiosarcomas are extremely rare. However, any type of sarcoma may occur in the breast as a primary lesion, including liposarcoma, leiomyosarcoma, rhabdomyosarcoma, malignant peripheral nerve sheath tumor, and osteosarcoma. Fibroepithelial tumors are biphasic neoplasms characterized by the proliferation of both epithelial and mesenchymal elements. Fibroadenoma and phyllodes tumors constitute the major entities.


Mesenchymal tumor Nodular fasciitis Hemangioma Atypical vascular lesion Angiosarcoma Fibromatosis Myofibroblastoma Inflammatory myofibroblastic tumor Granular cell tumor Phyllodes tumors Pseudoangiomatous stromal hyperplasia Fibroepithelial tumors Fibroadenoma 


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Istanbul University, Istanbul Medical Faculty, Department of PathologyIstanbulTurkey
  2. 2.Tuzlali Private Pathology LaboratoryIstanbulTurkey

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