Fig. 4From: A case of ductal carcinoma in situ (DCIS) with markedly elevated CA15-3 levels requiring 2 years of diagnosisPathological findings. a Mapping of surgical specimens. Red dots indicate the extent of DCIS. b, c HE staining showing low papillary type DCIS, with surrounding vasodilatation, stasis, and collagen fiber hyperplasia. d Expression of CA15-3. e Expression of CEA. CA15-3 and CEA are positive for plasma membrane and cytoplasmBack to article page