Rosen's Breast Pathology, 4e

FIG. 11.15.  DCIS, micropapillary and cribriform. A: Prominent peripheral micropapillary arches with secondary cribriform microlumina. (From Rosen PP. The pathology of breast carcinoma. In: Harris JR, Hellman S, Henderson IC, Kinne DW, eds. Breast diseases . Philadelphia: J.B. Lippincott, 1987:150, with permission.) B: Enlarged view of (A) showing low-grade nuclei. C: Large peripheral arcades which encroach on the lumen that contains histiocytes. (From Rosen PP, Oberman HA. Tumors of the mammary gland. ( AFIP Atlas of Tumor Pathology, 3rd series, vol. 7). Baltimore: American Reg- istry of Pathology, 1993.) D: DCIS with a fully developed cribriform structure that can arise in the patient with micropapillary DCIS.

FIG. 11.16.  DCIS, micropapillary. A: An example of relatively uncomplicated micropapillary DCIS with apocrine cytology. B: Florid micropapillary DCIS with numerous epithelial fronds filling the duct lumen.

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