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Spindle Cell Carcinoma : Fibromatosis-like

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Breast_CA_Metaplastic1.jpg

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Another example of a metaplastic spindle cell carcinoma with fibromatosis-like features. Hypocellular and hypercellular areas of spindle cells with storiform growth pattern are mixed with dense fibrosis containing keloid-like collagen. The nuclear features are low-grade and mitotic activity is low.

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