PMID: 9440148Jan 1, 1997Paper

Binucleated and multinucleated forms of plasma cells in synovia from patients with rheumatoid arthritis

Rheumatology International
M E PerryK A Brown

Abstract

A morphological examination of synovial tissue from 25 patients with rheumatoid arthritis revealed that binucleated or multinucleated plasma cells were present in all samples and absent in synovia obtained from 16 control patients. Plasma cells containing two, three of four nuclei constitute a mean 3% of the total plasma cell population. They were always found amongst plasma cell infiltrates and in close association with small blood vessels. Ultrastructural analysis found no evidence of cellular membranes separating the individual nuclei in binucleated or multinucleated plasma cells, suggesting that the cells did not arise from fusion. Some of these plasma cells had a diameter approaching 100 microns, and many were in intimate contact with macrophages. The demonstration of a few cells with mitotic figures within the infiltrates suggests that the maintenance of plasma cell numbers in rheumatoid synovium may depend, in part, upon their local proliferation.

Citations

Mar 31, 2006·Clinical Rheumatology·S BusteedJ O'Connell
Dec 1, 2007·Arthritis and Rheumatism·Y K Onno TengJacob M van Laar
Dec 30, 1998·APMIS. Supplementum·C K Høgdall
Dec 18, 2003·Veterinary Dermatology·Patrícia Dias Pereira, Augusto M R Faustino

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