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11690 Pathology

A 58-year-old woman undergoes lumpectomy for breast cancer. One month following surgery, she notices a firm 0.3-cm nodule along one edge of the surgical incision. Biopsy of this nodule reveals chronic inflammatory cells, multinucleated giant cells, and extensive fibrosis. The multinucleated cells in this nodule most likely formed in response to which of the following pathogenic stimuli?

AStaphylococcal infection
BForeign material
CLymphatic obstruction
DNeoplastic cells
Pathology
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