Primary Malignant Mixed Müllerian Mesodermal Tumor Mimicking a Rectosigmoid Carcinoma: A Case Report and Review of the Literature
Figure 6
Immunohistochemistry: (a) (2x) tumor cells are positive for CK7 on the epithelioid components; (b) (2x) tumor cells show no expression for CK20; (c) (2x) tumor cells show strong diffuse expression for estrogen receptor (this immunohistochemical pattern is not consistent with colorectal primaries, but rather with müllerian-derived tumors).
