Phyllodes tumor of the breast is a biphasic fibroepithelial neoplasm. 10 to 20% of phyllodes tumor show malignant transformation, often in the form of stroma, which usually shows fibrosarcomatous differentiation and rarely heterologous sarcomatous elements. Liposarcomatous differentiation is not common among phyllodes tumors. The correct diagnosis of heterologous liposarcomatous differentiation in a malignant PT requires identification of the biphasic component of the tumor. We reported a case of malignant phyllodes tumor which initially transformed into liposarcoma, in addition to a very rare intraductal hyperplasia and flat epithelial atypia. The patient was a 75-year-old woman, with a lump in the left breast without axillary lymphadenopathy. She also have a positive family history of breast carcinoma. She underwent surgery and still alive and disease free after one year.
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http://dx.doi.org/10.3233/BD-140377 | DOI Listing |
Magn Reson Imaging
January 2025
Background: Huai-he Hospital of Henan University, Kaifeng, China. Electronic address:
Objective: To explore the application value of MRI-based imaging histology and deep learning model in the identification and classification of breast phyllodes tumors.
Methods: Seventy-seven patients diagnosed as breast phyllodes tumors and fibroadenomas by pathological examination were retrospectively analyzed, and traditional radiomics features, subregion radiomics features, and deep learning features were extracted from MRI images, respectively. The features were screened and modeled using variance selection method, statistical test, random forest importance ranking method, Spearman correlation analysis, least absolute shrinkage and selection operator (LASSO).
Diagnostics (Basel)
December 2024
Department of Surgery, School of Medicine, Acıbadem Mehmet Ali Aydınlar University, 34752 Istanbul, Turkey.
Background: Somatostatin receptors (SSTRs) are expressed in most neuroendocrine neoplasms, particularly in gastroenteropancreatic neuroendocrine tumours, and have been utilised as diagnostic markers and therapeutic targets. The radioiodinated somatostatin analogue 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid- Tyr3-octreotate (DOTATATE) has been employed for SSTR targeting for either diagnostic or therapeutic purposes depending on the labelling with Gallium or Lutetium, respectively. SSTR expression is reported in a subset of breast adenocarcinoma and breast neuroendocrine carcinomas; however, minimal knowledge exists regarding their expression in fibroepithelial (biphasic) breast lesions such as fibroadenoma and phyllodes tumours.
View Article and Find Full Text PDFCureus
December 2024
General Surgery, Rajendra Institute of Medical Sciences, Ranchi, IND.
Phyllodes tumor is a type of fibroepithelial neoplasm involving the breast. This tumor is rarely reported in adolescents and the elderly and has a peak incidence in middle-aged women. Histologically, phyllodes tumors are classified as benign, borderline, or malignant.
View Article and Find Full Text PDFNPJ Breast Cancer
January 2025
Cancer Science Institute of Singapore, National University of, Singapore, Singapore.
Point mutations in the ligand binding domain of retinoic acid receptor alpha (RARα) are linked to breast fibroepithelial tumor development, but their role in solid tumorigenesis is unclear. In this study, we assessed the functional effects of known RARα mutations on retinoic acid signaling using biochemical and cellular assays. All tested mutants exhibited reduced transcriptional activity compared to wild-type RARα and showed a dominant negative effect, a feature associated with developmental defects and tumor formation.
View Article and Find Full Text PDFDiscoveries (Craiova)
September 2024
Department of Oncopathology, Homi Bhabha Cancer Hospital (HBCH) and Mahamana Pandit Madan Mohan Malviya Cancer Centre (MPMMCC), Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Varanasi, India.
Breast sarcomas are a diverse group of malignant neoplasms originating from the mammary stroma. They are uncommon tumors, often occurring as a component of other tumors. Among malignant breast mesenchymal tumors, pure sarcomas lacking epithelial components are even rarer, comprising only 0.
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