Hairy cell leukemia

Hairy cell leukemia
SpecialtyHematology and oncology

Hairy cell leukemia is an uncommon hematological malignancy characterized by an accumulation of abnormal B lymphocytes.[1] The incidence of hairy cell leukemia (HCL) is 0.28-0.30 cases per 100,000 people in Europe and the United States and the prevalence is 3 cases per 100,000 in Europe with a lower prevalence in Asia, Africa and the Middle East.[2]

HCL has an indolent course but with frequent relapses, but with treatment life expectancy is usually the same as that for the general population.[2]

HCL was originally described as histiocytic leukemia, malignant reticulosis, or lymphoid myelofibrosis in publications dating back to the 1920s. The disease was formally named leukemic reticuloendotheliosis, and its characterization was significantly advanced by Bertha Bouroncle and colleagues at the Ohio State University College of Medicine in 1958. Its common name, which was coined in 1966,[3] is derived from the "hairy" appearance of the cytoplasmic projections from malignant B cells under a microscope.[4]

  1. ^ "Hairy cell leukemia: MedlinePlus Medical Encyclopedia". medlineplus.gov. Retrieved 2018-04-17.
  2. ^ a b Cite error: The named reference Falini 2024 was invoked but never defined (see the help page).
  3. ^ Schrek R, Donnelly WJ (February 1966). ""Hairy" cells in blood in lymphoreticular neoplastic disease and "flagellated" cells of normal lymph nodes". Blood. 27 (2): 199–211. doi:10.1182/blood.V27.2.199.199. PMID 5322749.
  4. ^ "Hairy cell leukemia | Genetic and Rare Diseases Information Center (GARD) – an NCATS Program". rarediseases.info.nih.gov. Archived from the original on 2019-11-15. Retrieved 2018-04-17.