364
Chapter 11
FIG. 11.42.
DCIS in sclerosing adenosis.
A:
This pattern of apocrine DCIS in SA might be mistaken
for invasive carcinoma.
B:
The combined cytokeratin (
red
) and actin (
brown
) immunostain dem-
onstrates actin-positive myoepithelial cells around all of the cytokeratin-positive epithelial cells
(anti-CK, alkaline phosphatase; anti-SMA).
FIG. 11.43.
DCIS near a radial sclerosing lesion.
A:
A
whole-mount histologic section showing dark areas of
DCIS in the
upper left
and a lighter staining stellate RSL
that did not contain carcinoma.
B:
Cribriform DCIS from
the
upper left
region of
(A)
.
C:
SA and elastosis, which
formed the radial sclerosing lesion.
