Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
β1C immunoreactivity is retained in the majority of invasive duct carcinomas (A) and lobular carcinomas (B) of the breast. Down-regulation (C) or complete lack (D) of β1C expression is a feature of 40.3% of invasive carcinomas. Non-neoplastic mammary ducts provide built-in positive controls of immunostaining. Original magnifications: A and B, ×400; C, ×250; D, ×100.
