Immunohistochemical staining is often helpful in this regard, endocervical adenocarcinomas are typically CEA and p16 positive and estrogen receptor, progesterone receptor and vimentin negative.
The text describes a common use of immunohistochemical staining for identifying endocervical adenocarcinomas. It highlights that these tumors typically express certain markers (CEA, p16) while lacking others (estrogen receptor, progesterone receptor, vimentin).