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The median age of diagnosis is 70 years. [81] In young people, new cases of CLL are twice as likely to be diagnosed in men than in women. [82] In older people, however, this difference becomes less pronounced: after the age of 80 years, new cases of CLL are diagnosed equally between men and women. [82]
Chronic lymphocytic leukemia (CLL) most often affects adults over the age of 55. It sometimes occurs in younger adults, but it almost never affects children. Two-thirds of affected people are men. The five-year survival rate is 85%. [18] It is incurable, but there are many effective treatments.
CLL/SLL is the most common adult leukemia in Western countries, accounting for 1.2% of the new cancers diagnosed each year in the United States. It usually occurs in older adults (median age at diagnosis 70) and follows an indolent course over many years. [11] About 1-10% of CLL/SLLs develop a Richter's transformation at a rate of 0.5–1% per ...
111,000 (2015) [ 10 ] Acute lymphoblastic leukemia (ALL) is a cancer of the lymphoid line of blood cells characterized by the development of large numbers of immature lymphocytes. [ 1 ] Symptoms may include feeling tired, pale skin color, fever, easy bleeding or bruising, enlarged lymph nodes, or bone pain. [ 1 ]
While the disease can appear at any age, the median age at diagnosis is over 70. [27] Similar to B-cell prolymphocytic leukemia (B-PLL) in chronic lymphocytic leukemia, HCL-V is a more aggressive disease. Historically, it has been considered less likely to be treated successfully than is classic HCL, and remissions have tended to be shorter.
T-cell-prolymphocytic leukemia (T-PLL) is a mature T-cell leukemia with aggressive behavior and predilection for blood, bone marrow, lymph nodes, liver, spleen, and skin involvement. [ 1 ] T-PLL is a very rare leukemia, primarily affecting adults over the age of 30. It represents 2% of all small lymphocytic leukemias in adults. [ 2 ]
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