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Objective: The objective of the study was to determine the role of M-band component on serum protein electrophoresis and bone marrow biopsy in the diagnosis. Methods: Data was collected on 34 patients with MM diagnosed and/or treated. Results: There were equal numbers of men 17 (50%) and women 17 (50%). All patients were first screened for the presence of M-Band using serum protein electrophoresis (SPE) followed by bone marrow biopsy as the confirmatory test. Only two patients screened negative by SPE. On the other hand six patients who tested positive by SPE were negative on biopsy. Thus the sensitivity of the SPE was 96% and specificity 71%. This means that 29 patients had an established diagnosis of MM. There was a slight male predominance when compared to females. Conclusion: The data showed that the SPE and bone biopsy are the important tools in the diagnosis of multiple myeloma in a small developing country.
The University of the West Indies, Faculty of Medical Sciences, Department of Preclinical and Paraclinical Sciences, Trinidad and Tobago.
This article was published in the following journal.
Name: Archives of physiology and biochemistry
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A rare, aggressive variant of MULTIPLE MYELOMA characterized by the circulation of excessive PLASMA CELLS in the peripheral blood. It can be a primary manifestation of multiple myeloma or develop as a terminal complication during the disease.
Abnormal immunoglobulins characteristic of MULTIPLE MYELOMA.
Multiple protein bands serving as markers of specific ANTIBODIES and detected by ELECTROPHORESIS of CEREBROSPINAL FLUID or serum. The bands are most often seen during inflammatory or immune processes and are found in most patients with MULTIPLE SCLEROSIS.
Hemagglutination test in which Coombs' reagent (antiglobulin, or anti-human globulin rabbit immune serum) is added to detect incomplete (non-agglutinating, univalent, blocking) antibodies coating erythrocytes. The direct test is applied to red cells which have been coated with antibody in vivo (e.g., in hemolytic disease of newborn, autoimmune hemolytic anemia, and transfusion reactions). The indirect test is applied to serum to detect the presence of antibody (e.g., in detection of incompatibility in cross-matching tests, detection and identification of irregular antibodies, and in detection of antibodies not identifiable by other means).
A tetrameric protein, molecular weight between 50,000 and 70,000, consisting of 4 equal chains, and migrating on electrophoresis in 3 fractions more mobile than serum albumin. Its concentration ranges from 7 to 33 per cent in the serum, but levels decrease in liver disease.
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