BREAST CYTOPATHOLOGY

Selected Reading 151
• Once again, a careful review of clinical history and the
pathology slides of the original primary tumor may help
elucidate this process.
• The judicial use of a panel of immunohistochemistry stains
and ancillary studies such as electron microscopy and flow
cytometry may also be helpful.
• Useful immunostains include hormonal receptors such as
estrogen and progesterone and GCFDP-15; positive results
from such stains generally are helpful to classify the lesion
as a primary breast tumor.
• An immunochemical panel that repeats the one performed
on the primary tumor can also identify a metastatic lesion
if the panel results are comparable.
Selected Reading
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