in these germinal centers , the presence of immunoglobulins ( igg and igm ) , early acting complement components ( c1q , c4 , c3c , c3d ) , receptors for c3b and c3d and dendritic reticulum cell-1 was demonstrated in lace-like network patterns which were proven electron-microscopically to coincide with the surface of follicular dendritic cells .
C0282491
germinal centers
C0242245
follicular