What does positive for E-cadherin mean?
Sections were scored for IHC as follows: Negative, 1+ stands for weak staining, and less than 10 % of tumor cells show positive reaction for E-cadherin, 2 + stands for moderate staining, and more than 10 % show positive reaction for E-cadherin, and 3+ reflects strong staining in most of the tumor cells.
What is E-cadherin a marker of?
E-cadherin is a cell adhesion molecule that is expressed in normal breast tissue and is useful as a phenotypic marker in breast cancer, with absence of its expression frequently observed in lobular type tumors.
What does negative for E-cadherin mean?
E-cadherin is a test that the pathologist might use to help determine if the tumor is ductal or lobular. (The cells in invasive lobular carcinomas are often negative for E-cadherin.) If your report does not mention E-cadherin, it means that this test was not needed to tell what type of cancer you have.
What is apocrine carcinoma?
Apocrine carcinoma is a cancer of a sweat gland. Apocrine carcionoma most often develops under the arm (the axilla), but it can develop on the scalp or other parts of the body. The cause of apocrine carcinoma is unknown.
What does apocrine do?
Apocrine sweat glands, which are usually associated with hair follicles, continuously secrete a fatty sweat into the gland tubule. Emotional stress causes the tubule wall to contract, expelling the fatty secretion to the skin, where local bacteria break it down into odorous fatty acids.
What are apocrine cells?
Apocrine (/ˈæpəkrɪn/) is a term used to classify exocrine glands in the study of histology. Cells which are classified as apocrine bud their secretions off through the plasma membrane producing extracellular membrane-bound vesicles. The apical portion of the secretory cell of the gland pinches off and enters the lumen.
Where is E-cadherin located?
E-cadherin is one of the most important molecules in cell-cell adhesion in epithelial tissues. It is localized on the surfaces of epithelial cells in regions of cell-cell contact known as adherens junctions [3].
