title: Karyotypic findings in a case of prolymphocytic leukemia with a history of radiation exposure.
abstract: Cytogenetic examination, utilizing B- and T-cell mitogens, of the peripheral blood lymphocytes of a patient with the prolymphocytic variant of chronic lymphocytic leukemia (CLL) and a history of radiation exposure revealed two abnormal clones. One clone with 48 chromosomes (+t(6;12),6q-, +12,14q+) may be derived from CLL cells, whereas the clone with 46 chromosomes and a ring #11 possibly originated from normal T and/or B cells affected by past irradiation.
mesh_terms: D000368:Aged; D004854:Herpesvirus 4, Human / Q000276:immunology; D006801:Humans; D007621:Karyotyping; D007945:Leukemia, Lymphoid / Q000235:genetics*; D007953:Leukemia, Radiation-Induced / Q000235:genetics*; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000166:cytology / Q000276:immunology; D008297:Male; D008677:Metaphase; D008934:Mitogens
chemical_list: D008934:Mitogens