DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Non-Hodgkin's lymphoma. Swelling in the neck of a 70-year-old man with a non-Hodgkin's type lymphoma, a cancer of the lymph nodes. White blood cells (lymphocytes) divide abnormally and collect in the lymph nodes, where they can then grow into tumours. Lymphomas give rise to a broad spectrum of malignancy, different types carrying a variable prognosis. The enlarged lymph nodes are the typical symptom (seen here), along with weight loss, fever and sweating. Treatment involves combinations of chemotherapy drugs, although radiotherapy may be used for localized disease.
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