Lymphadenopathy Evaluation and Biopsy Indications

Lymphadenopathy describes enlargement of lymph nodes from any cause and is a frequent reason for haematology referral. Most cases in primary care reflect benign reactive responses to local infection or generalised viral illness rather than malignancy. The challenge is to recognise the minority that signal lymphoma, leukemia or solid tumor metastasis.

Key clinical features that raise concern include duration beyond four to six weeks, hard or fixed consistency, size greater than two centimeters, supraclavicular or epitrochlear location, painlessness despite growth and the presence of B symptoms such as drenching sweats, fevers and unintended weight loss. Generalised lymphadenopathy with hepatosplenomegaly also warrants prompt evaluation.

Excisional biopsy of an intact node is preferred over fine needle aspiration when lymphoma is suspected because architecture is needed for classification. Imaging guided core biopsy is acceptable in deep nodal disease. The choice of node and timing of biopsy benefit from haematology and surgical input.