Abstract
In human pigmentary cirrhosis nuclear (pseudo-)inclusions of cytoplasmic material, containing less or more degenerated and therefore faintly stained hemosiderin granules, are to be observed. But sometimes there are also finely fibrillar or granular proteinaceous materials, stainable by the Prussian-blue reaction, lying between the chromatin-strands or occupying the whole nucleus and displacing the chromatin to the nuclear envelope (margination of chromatin). Such uncoloured substances may condense into homogeneous masses and nearly hexagonal (or related) crystals with a diameter up to 14 μ and a yellow-brownish colour, giving a strongly positive PERL’s reaction. In contrast to the preceding stages intranuclear crystals of this kind have been observed in one case only. After destruction of the nuclear envelope and the marginated chromatin the crystals are lying free in the cytoplasm and later on, the cytoplasm being destroyed too, they may be ingested by von Kupffer cells. All the iron containing crystals, to be found in the cytoplasm, derive from former intranuclear inclusions.
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