Primary dedifferentiated liposarcoma of the breast: A case report.

Primary breast liposarcoma is an extraordinarily rare breast malignancy. Histological subtypes including dedifferentiated are confirmed after a thorough histopathological and immunohistochemistry analysis. Liposarcoma of the breast can mimic other breast lesions. Long-term follow-up is needed due to the risk of local recurrence and delayed dedifferentiation.