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.
Distribution and expression pattern of carbonic anhydrase IX (Ca9) in lymph node metastasis was investigated by immunohistochemistry. Note the strong expression of Ca9 by tumour cells in the lymph node sinus (arrow) and by tumour cells infiltrating the lymph node (arrowheads). Haematoxylin counterstain; original magnification ×200.
