Dr. Rejiv Rajendranath is a senior consultant medical oncologist, Integrated Cancer Care Group, Apollo Cancer Institutes, Chennai. He specializes in head and neck, breast and gynecology, thoracic oncology, lymphomas and stem cell transplantation. The tumorous growth of white blood cells originating in the lymph nodes is termed as lymphomas . Statistics estimate that about twenty thousand new cases of lymphoma are detected in India every year.

About 90% of lymphomas are the non-Hodgkin's type while about 10% are Hodgkin's. Each of these lymphomas needs different management approach. The diagnosis of lymphoma and the precise subtype is challenging, and optimising the diagnostic process is central to improved management. However, significant improvements in the understanding of the biology of lymphoma have contributed to improved diagnosis and also allowed for more targeted therapies. In…