期刊
BRITISH JOURNAL OF HAEMATOLOGY
卷 117, 期 4, 页码 882-885出版社
WILEY-BLACKWELL
DOI: 10.1046/j.1365-2141.2002.03513.x
关键词
multiple myeloma; CD56; plasmablast; flow cytometry; prognosis
类别
We analysed CD56 expression in 70 patients with multiple myeloma (MM) to determine its clinicopathological and prognostic significance. Fifty-five (79%) patients were CD56(+) . CD56(-) patients (n = 15) had higher beta(2) microglobulin levels and a higher incidence of extramedullary disease, Bence Jones protein, renal insufficiency and thrombocytopenia than CD56(+) patients. Their myelomas more frequently had a plasmablastic morphology. Overall survival was significantly lower in CD56(-) than CD56(+) patients (22 vs 63 months, P = 0.0002). We conclude that CD56(-) MM is a discrete entity associated with more aggressive disease. The higher incidence of plasmablastic cases suggested that CD56(-) MM may develop from a less mature plasma cell than CD56(+) MM.
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