Fig. 3

Purulent focus of composite 2, a Massive accumulation of maternal neutrophil granulocytes in a gel-like amorphous matrix surrounded by congested maternal sinusoids (si). Caspase 3 immunoreactivity. 20x. b Inset: delimited spot of terminal apoptosis in the sinusoidal decidua with caspase 3 positive foam cells (black arrow), cell detritus and neutrophil granulocytes (white arrow heads). 40x. For localization see Additional file 1: Detailed Observations, Slide 4