#leukemia__leukaemia__cancer_of_the_blood  malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer
  supertype:  cancer__malignant_neoplastic_disease  any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream
  subtype:  acute_leukemia__acuteleukemia  rapidly progressing leukemia
     subtype:  acute_lymphocytic_leukemia__acutelymphocyticleukemia__acute_lymphoblastic_leukemia__acutelymphoblasticleukemia  acute leukemia characterized by proliferation of immature lymphoblast-like cells in bone marrow, lymph nodes, spleen, and blood; most common in children
     subtype:  acute_myelocytic_leukemia__acute_myeloid_leukemia__acutemyeloidleukemia  acute leukemia characterized by proliferation of granular leukocytes; most common in adolescents and young adults
  subtype:  chronic_leukemia__chronicleukemia  slowly progressing leukemia
     subtype:  chronic_lymphocytic_leukemia__chroniclymphocyticleukemia  chronic leukemia characterized by lymphoblast-like cells; more common in older men
     subtype:  chronic_myelocytic_leukemia__myeloid_leukemia__myeloidleukemia  chronic leukemia characterized by granular leukocytes; more common in older people
  subtype:  lymphocytic_leukemia__lymphocyticleukemia  leukemia characterized by enlargement of lymphoid tissues and lymphocytic cells in the circulating blood
     subtype:  lymphoblastic_leukemia__lymphoblasticleukemia  a form of lymphocytic leukemia in which the abnormal cells in the circulating blood are almost totally lymphoblasts
  subtype:  monocytic_leukemia__monocyticleukemia__monocytic_lukaemia__monocyticlukaemia__monoblastic_leukemia__monoblasticleukemia__monoblstic_leukaemia__histiocytic_leukemia__histiocyticleukemia__histiocytic_leukaemia__histiocyticleukaemia  leukemia characterized by the proliferation of monocytes and monoblasts in the blood
  subtype:  myeloblastic_leukemia  a malignant neoplasm of blood-forming tissues; characterized by numerous myeloblasts in the blood stream
  subtype:  myelocytic_leukemia__granulocytic_leukemia  a malignant neoplasm of blood-forming tissues; marked by proliferation of myelocytes and their presence in the blood
     subtype:  acute_myelocytic_leukemia__acute_myeloid_leukemia__acutemyeloidleukemia  acute leukemia characterized by proliferation of granular leukocytes; most common in adolescents and young adults
     subtype:  chronic_myelocytic_leukemia__myeloid_leukemia__myeloidleukemia  chronic leukemia characterized by granular leukocytes; more common in older people

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