Outline Bone marrow hematopoiesis failure led by chemicals, radiation, biological factors and unknown etiology. The common clinical presentation is mild to severe pancytopenia
General considerations Definition: A group of neoplastic diseasesof lymphoid tissues Classification: Hodgkin' s Disease, HD (Hodgkin' s Lymphoma) Non Hodgkin s Lymphoma,NHL)
Concept of leukemia Definition aIt is the results of the tumor proliferation of heamotopoietic stem cells.(造血干细 胞) Leukemia is a malignant blood disorder. (not solid tumor) Date xie Yi, Hua Shan Hospital
DIAGNOSIS AND CLASSIFICATION Anemia is an absolute decrease in hematocrit, hemoglobin concentration,or the RBC count. Anemia is not a diagnosis, but a sign of underlying disease