BREAST CYTOPATHOLOGY

Intraductal Papilloma/Papillomatosis 69
Figure 3.14. Intraductal papilloma. Hypercellular smear with a
large fragment of ductal epithelium displaying well-formed papillary
architecture. The fibrovascular cores covered by layers of proliferative
ductal epithelium so characteristic of a papilloma are seldom
seen in routine practice. (Smear, Papanicolaou.)
Figure 3.15. Intraductal papilloma. Ductal epithelium in an irregularly
branched papillary architecture shown here. The epithelial cells
appear enlarged, crowded, and disorganized. A well-formed fibrovascular
core is often not visualized in these cellular fragments.
(Smear, Diff-Quik.)