Macroglobulinemia, Waldenstrom
A chronic low-grade (indolent) type of lymphoma due to a malignant clone of plasma cells. These plasma cells multiply out of control, invade the bone marrow, lymph nodes, and spleen, and characteristically produce huge amounts of a large-sized antibody called macroglobulin or IgM. The excess IgM causes the blood to be hyperviscous (to thicken). Waldenstrom macroglobulinemia can occur in younger people but is usually seen in people over age 65. The disease is more common among men than women and among whites than blacks. Signs and symptoms of the disease may include enlarged lymph nodes or spleen (splenomegaly), fatigue, headaches, weight loss, a tendency to bleed easily, visual problems, confusion, dizziness, and loss of coordination. The symptoms are largely due to the thickening of the blood. In extreme cases, the increased concentration of IgM in the blood can lead to heart failure. The treatment depends upon the viscosity of the patient's blood. Patients with pronounced hyperviscosity usually receive chemotherapy (anticancer drugs). A type of treatment called plasmapheresis may be performed to relieve symptoms such as excessive bleeding and dizziness. In this procedure, the blood plasma (which contains the antibody IgM) is removed from the patient. Other parts of the blood (red blood cells, white blood cells, and platelets) are returned to the patient along with a plasma substitute. Interferon alpha, a form of biological therapy, may also help relieve symptoms.

Medical dictionary. 2011.

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  • Macroglobulinemia de Waldenstrom — Waldenström s macroglobulinemia Clasificación y recursos externos CIE 10 C88.0 CIE 9 273.3 …   Wikipedia Español

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  • Waldenström, macroglobulinemia de — macroglobulinemia de Waldenström f. hemat. Macroglobulinemia que afecta principalmente a varones ancianos ocasionada por una proliferación clonal de linfocitos B que segregan grandes cantidades de IgM. Los síntomas que provoca son astenia,… …   Diccionario médico

  • macroglobulinemia — f. hemat. Incremento anormal en la sangre de gammaglobulina M (de alto peso molecular); puede aparecer sin síntomas o ser esencial (macroglobulinemia de Waldenström). Medical Dictionary. 2011 …   Diccionario médico

  • Waldenström — may refer to:*Paul Petter Waldenström (1838 1917), Swedish theologian who became the most prominent leader of the free church movement in late 19th century Sweden. *Jan G. Waldenström (1906 1996), Swedish physician who identified the condition… …   Wikipedia

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  • Waldenstrom macroglobulinemia — A chronic low grade (indolent) type of lymphoma due to a malignant clone of plasma cells. These plasma cells multiply out of control, invade the bone marrow, lymph nodes, and spleen, and characteristically produce huge amounts of a large sized… …   Medical dictionary

  • Waldenstrom's macroglobulinemia — Wal·den·ström s macroglobulinemia väl dən .stremz , .strœmz n a rare progressive syndrome associated with a high serum concentration of a monoclonal antibody of the class IgM and characterized by adenopathy, hepatomegaly, splenomegaly, anemia,… …   Medical dictionary

  • Macroglobulinemia — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD9 = ICD9|273.3 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D008258 Macroglobulinemia is the presence of increased levels of macroglobulins in the… …   Wikipedia

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