to analyze the immunological role of lymphoid germinal centers and follicular dendritic cells ( fdc ) in synovial tissue of rheumatoid arthritis ( ra ) , we tried to detect the immune complex in germinal centers by light and electron microscopic immunocytochemistry with special emphasis on immunoglobulin , complement components , ra factor , and drc-1 antigen .
C0242245
follicular
C0282491
germinal centers