This is a scanning electron micrograph (SEM) of an FDC isolated 1 Day after antigenic stimulation from mice. This FDC has filament-like (filiform) dendrites emanating from the central cell body. Lots of the dendrites have a club-shaped ending. Such club-shaped ends usually mean that the cell process is still growing. Some but not all FDCs become beaded to form iccosomes (see next figure of an FDC at 1-3 Day). Although it is not discernible on scanning electron micrographs, the dendrites and cell body are covered with a layer of immune complexes. Magnification: X3700. For more information refer to the REF button below.