Primary breast stromal sarcoma: A rare case report

Primary sarcoma of the breast comprises less than 1% of all the breast malignancies. It is a locally aggressive neoplasm with only a few hundred cases published till date. The index case is being reported due to rarity of this entity. Breast sarcoma should always be considered whenever spindle cells are seen in the histological sections. The main diagnostic confusion arises with malignant phyllodes tumor and metaplastic carcinoma from which distinction is important from prognosis as well as treatment point of view. Herein, we report a case of a 47-yr-old female, who presented with a right-sided breast lump which was diagnosed as suspicious of carcinoma breast on fine needle aspiration (FNAC). Thereafter, modified radical mastectomy was performed, and on histopathology, a possibility of fibro-histiocytic tumor of intermediate malignancy was rendered, which was subsequently confirmed by immunohistochemistry (IHC). Keywords: Sarcoma, Mastectomy, Immunohistochemistry.