Abstract

The spheroliths , mostly to be found in the brown nucleus of Morgagni's hypermature cataract, are up to 0.25 mm in diameter and consist of radially arranged crystals of calcium carbonate of oxalate. From the spheroliths extend, in varying degrees, marginally radial structures of a very fine filamentous, streaky character, that do not enter the altered protein of the lenticular nucleus. This, most probably, is a newly formed protein structure (a structure of mucopolysaccharides according to Zimmerman and Johnson 1958) in which secondary deposits of calcium carbonate or oxalate crystals accumulate. The spheroliths are usually round or kidney-shaped and rarely consist of more than one or two individual bodies.

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