Lymph node biopsies are performed to diagnose lymphomas and other lymphoid disorders. The excised lymph node is fixed, embedded in paraffin, sectioned, and stained. Histological examination reveals the architecture of the lymph node, the presence of malignant cells, and patterns that may suggest specific types of lymphoma. Immunohistochemistry (IHC) is often used to detect specific antigens and aid in the classification of lymphomas.
