Polarization microscopic investigation of subarachnoid fibrosis after subarachnoid haemorrhage.

The author used the polarization microscope and topo-optical reactions such as phenol reaction, collagen-specific sulphation, and picrosirius red F 3 BA staining to investigate the nature of subarachnoid fibrosis after experimental subarachnoid haemorrhage. It is strongly suggested that the subarachnoid fibrotic deposits—which here analysed in a previous study by scanning electronmicroscopy—contain a high amount of collagen as a main component both three weeks and three months after the SAH.