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Malignant phyllodes tumor with heterologous differentiation: Clinicopathological spectrum of nine cases in a tertiary care institute in Eastern India

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Phyllodes tumors are uncommon fibroepithelial neoplasms of breast. Heterologous sarcomatous differentiation of malignant phyllodes tumor (MPT) is a rare phenomenon as shown in the literature. Herein we report a series… Click to show full abstract

Phyllodes tumors are uncommon fibroepithelial neoplasms of breast. Heterologous sarcomatous differentiation of malignant phyllodes tumor (MPT) is a rare phenomenon as shown in the literature. Herein we report a series of nine cases from a tertiary care centre in Eastern India. Patients demographic data and clinical details were obtained from the medical records. Histopathology and immunohistochemical studies were analysed and diagnosed accordingly. Out of 38 cases of PT, 13 were found to be MPT, of which 9 cases showed heterologous differentiation in the form of angiosarcoma, fibrosarcoma, undifferentiated sarcoma, extensive squamous differentiation and with lipomatous metaplasia. Proper diagnosis and subtyping of the sarcomatous component is essential for deciding the correct treatment modality and prognostication of the disease. However there is no clear cut treatment protocol is available because of paucity of data.

Keywords: cases tertiary; nine cases; differentiation; malignant phyllodes; tertiary care; phyllodes tumor

Journal Title: Indian Journal of Pathology and Microbiology
Year Published: 2017

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