Lymph nodes in health and disease – A pathologist's perspective

A lymph node (LN) being a unique immunological organ has the ability to adapt when exposed to emigrants. The structural and architectural components are tampered, and it acts as an efficient immune checker in the presence of an antigen and also exhibits a morphological drift when neoplastic cells evade the organ. So, understanding the basics of histology of a lymph node is essential for the better identification and interpretation of pathological events occurring in a lymph node. A phenomenon pertaining to LNs, interpretation of reactive and neoplastic lymph nodes at morphological levels and pathological diversity of LNs in selected disease processes are emphasised.