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Int J Surg Pathol. 2015 May;23(3):221-4. doi: 10.1177/1066896914567331. Epub 2015 Jan 22.

Periductal Stromal Sarcoma of the Breast With Liposarcomatous Differentiation: A Case Report With 10-Year Follow-up and Literature Review.

Author information

1
Jacobi Medical Center, Bronx, NY, USA.
2
Hofstra-North Shore Long Island Jewish School of Medicine, Hempstead, NY, USA.
3
Hofstra-North Shore Long Island Jewish School of Medicine, Hempstead, NY, USA tbhuiya@nshs.edu.

Abstract

A biphasic tumor with features of benign ductal elements and a malignant stromal component that lacks the architecture of a phylloides tumor represents a diagnostic challenge. A 35-year-old woman presented with a painful mass located in the upper inner quadrant of the right breast. A biopsy revealed histologically that the tumor had a multinodular architecture with malignant spindle cells forming cuffs around multiple open benign ducts. No leaf-like architecture was present. In addition, liposarcomatous differentiation was seen in focal areas. Immunohistochemical staining showed positive for CD34, vimentin and CDK4, and negative for ER, PR, Her2/neu, CD10, CD117, p63, bcl-2, cytokeratin, and MDM2. A diagnosis of periductal stromal sarcoma with liposarcomatous differentiation was established. Following excision with mastectomy and adjuvant chemotherapy, the patient was disease-free for 10 years. To our knowledge, this is the first case report of periductal stromal sarcoma showing liposarcomatous differentiation.

KEYWORDS:

liposarcomatous differentiation; nonphylloides sarcoma of breast; periductal stromal sarcoma

PMID:
25614463
DOI:
10.1177/1066896914567331
[Indexed for MEDLINE]

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