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BREAST CYTOPATHOLOGY

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Fat Necrosis/Organizing Hematoma 35

Figure 2.16. Fat necrosis. High magnification shows small clusters

of histiocytes embedded within a degenerated, granular background.

Caution should be taken not to overcall these cells as infiltrating

carcinoma cells. (Smear, Diff-Quik.)

Figure 2.17. Fat necrosis with organizing hematoma. Hypercellular

smear composed of inflammatory cells, histiocytes, and proliferating

endothelial cells, which is a common accompaniment of granulation

tissue formation. (Smear, Papanicolaou.)

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