Lymphedema – Definition, Treatment and Therapy

Definition of Lymphedema Lymphedema – swelling and often discomfort arising from inadequate lymph drainage and flow that allows interstitial fluid (fluid between the cells) to accumulate. Most often occurs when infection or cancer that extensively engages the lymphatic system, or when surgery disrupts the lymph vessels and lymph nodes. Lymphedema is a common consequence of surgery and radiation therapy as treatments for cancer. Surgeons typically […]

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Lymphocytopenia – Definition and Causes

Definition of Lymphocytopenia Lymphocytopenia – a decline in the number of lymphocytes in the blood to fewer than 1,000 lymphocytes per microliter of whole blood. Lymphocytes circulate in the blood and the lymph, their primary role being to identify and attack invading pathogens to prevent and fight infection. Lymphocytopenia often accompanies immunodeficiency disorders, notably HIV/AIDS (in which it may be one of the […]

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Lymphoma – Definition, Symptoms and Treatment

Definition of Lymphoma Lymphoma is a type of cancer that affects the hematopoietic functions of the lymph system that results in the uncontrolled proliferation of lymphocytes, the type of leukocyte  (white blood cell) that the lymph tissues primarily produce. The lymphocytes congregate in the lymph tissues to form tumors. Lymphoma vs Leukemia Leukemia and lymphoma are both cancers […]

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Methemoglobinemia – Definition, Symptoms and Treatment

Definition of Methemoglobinemia and Causes A blood oxygenation disorder in which methemoglobin, a structure of hemoglobin molecules that prevents iron from binding with oxygen, accumulates in the blood. The result is diminished or insufficient oxygen delivery to the body’s cells. Methemoglobin represents excessive iron molecule structures that are in a ferric state, in which they […]

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Multiple Myeloma (Cancer) – Symptoms and Treatment

Definition of Multiple Myeloma A cancer of the bone marrow in which plasma cells, also called myeloma cells or myelocytes, proliferate, accumulating as lesions (growths) to develop within the bone marrow cavities of the bones. The lesions prevent normal functioning of the bone marrow. They also damage bone tissue and weaken the bone structure. Plasma […]

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Myelodysplasia Syndrome – Definition, Symptoms and Treatment

Definition of Myelodysplasia Syndrome Different constellations of symptoms, all arising from dysfunction of the bone marrow and all leading to various cytopenias (low blood cell counts). In myelodysplasia, also called preleukemia, the number of hematopoietic cells within the bone marrow increases but the produced cells are disordered and often released to the blood while they […]

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Myelofibrosis – Definition, Treatment and Symptoms

Definition of Myelofibrosis Myelofibrosis is a chronic, degenerative condition of the bone marrow in which fibrous tissue replaces the red bone marrow.  Researchers do not know what causes myelofibrosis, which typically develops in people between the ages of 50 and 70, but believe it is an autoimmune response from a single defective blood stem cell (called a clonal dysfunction). […]

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Neutropenia – Definition, Causes and Symptoms

Definition of Neutropenia Lower than normal numbers of neutrophils circulating in the blood. Neutrophils are the most abundant of the three subtypes of granulocytes; the granulocyte is a type of leukocyte (white blood cell). Neutropenia, which can be acute or chronic, results in increased susceptibility to bacterial and fungal (yeast) infection. Severe neutropenia can leave the body […]

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Anemia – causes, symptoms and treatment

Definition Anemia A reduced ability of the blood to meet the body’s oxygenation needs arising from either a diminished volume of erythrocytes (red blood cells) in the blood or from reduced hemoglobin content in the erythrocytes. Though the common perception of anemia is that it is itself a health condition, doctors consider anemia an indication […]

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Polycythemia Vera – Definition, Symptoms and Treatment

Definition of Polycythemia Vera A myeloproliferative condition of the blood in which the red bone marrow produces an excessive volume of erythrocytes (red blood cells), platelets, and neutrophils that results in increased cell volume and decreased fluid volume (plasma) in the blood. This myeloproliferation (overproduction by the bone marrow) thickens the blood (hyperviscosity), making it […]

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