Comparative morphology of laser lesion sites in parenchymal organs (liver, kidney, spleen).

The inflammatory and reparative processes in the parenchymal wounds after laser coagulation are characterized by predominance of proliferative reaction. Injury foci are always spatially separated from the intact tissue. Coagulation necrosis and thrombosis lead to suppression of the exudative component of inflammation in sites of laser exposures in the liver, kidneys, and spleen. Early macrophage response stimulates proliferation of fibroblasts and formation of the fine connective tissue scar within 14 days.