[Experimental study of the morphogenesis of nutmeg fibrosis of the liver].

Partial structure of the inferior vena cava over the diaphragm carried out experimentally in dogs let to blood stasis in the liver. Biopsy material obtained at different experimental periods demonstrated that fibrosis began to develop from the central and collective veins as a result of proliferation of the fibroblasts of the vein adventitita and "emigration" of the fucsinophilic fibers into the adjacent parenchyma. In parallel there occurred a neoformation of the connective tissue in the areas of hemorrhages and necroses associated with proliferation of the Kupffer's cells. Nutmeg fibrosis proved to have a cellular genesis and as associated with increased tropocollagen activity of fibroblasts.