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.
Surgery is not the first-line treatment option for patients with chronic<unk>  leukemia. Splenectomy is usually reserved for patients with enlarged spleen and it has no role in curing CML.
Chronic myelogenous leukemia surgery
Chronic lymphocytic leukemia surgery
Acute promyelocytic leukemia surgery
Adult T-cell leukemia surgery
Myeloproliferative neoplasm surgery
Chronic neutrophilic leukemia surgery
Myelodysplastic syndrome surgery
Myelofibrosis surgery