Phyllodes tumor is a rare and particular type of breast tumor with features of stromal hyperplasia and malignant potential. The present case is an unusual presentation of a phyllodes tumor with pseudoangiomatous stromal hyperplasia (PASH) which forms an essential part of benign breast disease but is not frequently described in association with phyllodes tumor. A 36-year-old female patient was referred to the hospital with a large breast mass considered to be a benign growth. Histopathological examination revealed it to be a phyllodes tumor with a feature of pseudoangiomatous stromal hyperplasia. This case report contributes to the understanding of the phyllodes tumor and emphasizes differential diagnosis in breast pathology. It shows the need for histopathological assessment in order to distinguish between these tumors and to determine their treatment.
Keywords: clinical outcome; cystosarcoma phyllodes; fibroadenoma-like changes; fibroepithelial tumor; immunohistochemistry(ihc); pathological features; pseudoangiomatous stromal hyperplasia (pash); stromal changes.
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