Pernicious anemia (also called Addison's anemia) is a type of red blood cell disorder caused by impaired vitamin B12 metabolism. Vitamin B12 is primarily absorbed by the small intestine, after being bound to intrinsic factor secreted by parietal cells of gastric mucosa. When this process is disrupted by conditions like atrophic gastritis, celiac disease, small bowel resection etc, B12 deficiency ensues.<unk><unk>  leukemia may be classified according to the clinical characteristics and laboratory findings into five phases:<unk>  phase, accelerated phase, blast crisis, relapsed or recurrent CML and refractory disease. The earliest phase is the<unk>  phase and generally has the best response to treatment. The accelerated phase is a transitional phase and blastic phase is an aggressive phase that becomes life-threatening. Relapsed CML means that the number of blast cells in the blood and bone marrow increase after remission. Finally, primary refractory disease means the leukemia did not respond to initial treatment.
Chronic myelogenous leukemia staging
Chronic myelogenous leukemia laboratory tests
Chronic myelogenous leukemia classification
Acute myeloid leukemia laboratory tests
Mantle cell lymphoma staging
Chronic lymphocytic leukemia laboratory tests
Acute myeloid leukemia classification
Myelodysplastic syndrome classification