What is the Role of Immunohistochemistry in Pathological Staging?
Immunohistochemistry (IHC) is a technique that uses antibodies to detect specific proteins in tissue sections. It is increasingly used to complement traditional histological methods in pathological staging. IHC can provide additional information about tumor markers, which are molecules that may indicate the aggressiveness of the cancer and potential therapeutic targets. For example, the presence of HER2 in breast cancer cells can influence treatment decisions.