lymphoid infiltrate

Lymphoid infiltrate refers to the presence of immune cells called lymphocytes within tissues, often indicating an immune response or inflammation. These cells, which include various types of lymphocytes like B and T cells, gather in tissues to fight infections, respond to abnormal growths, or sometimes due to autoimmune conditions. Detecting a lymphoid infiltrate in a biopsy helps doctors understand if the immune system is reacting to something unusual in the tissue, guiding diagnosis and treatment options. It can be seen in various conditions, including infections, allergies, and certain cancers.