Non-Hodgkin’s Lymphomas

OverviewNon-Hodgkin's lymphomas (NHLs) are a heterogeneous group of lymphoproliferative disorders originating in B-, T-, or natural killer (NK) lymphocytes.In the United States, B-cell lymphomas represent 80% to 85% of all cases, with 15% to 20% being T-cell lymphomas; NK lymphomas are very rare.In 2009, an estimated 65,980 new cases of NHL will be diagnosed and 19,500 will die of the disease. 1 NHL is the sixth leading site of new cancer cases among men and fifth among women, accounting for 4% to 5% of new cancer cases and 3% to 4% of cancer-related deaths.