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Summary

A 49-year-old man with chronic myelogenous leukemia developed dense posterior subcapsular cataracts and punctate cortical opacities after five years of busulfan (Myleran) therapy.

We found that the histopathologic appearance of busulfan-induced cataracts is similar to other forms of human and experimental cataracts, regardless of cause. Ultrastructural examination revealed cortical liquefaction with formation of Morgagnian droplets, involving primarily the region from the equator to the posterior subcapsular space. In contrast to previous findings in rats, we observed posterior migration of equatorial nuclei and bladder cell formation. Also present were socalled crystalloid rays and abundant degenerate lens fiber membranes manifested as multi-layered, irregularly folded configurations resembling myelin figures.

Zusammenfassung

Bei einem 49-jährigen Mann mit chronischer myelogener Leukämie zeigten sich nach fünfjähriger Behandlung mit Busulfan (Myleran) dichte, hintere subkapsuläre Katarakte mit punktförmiger Rindentrübung.

Das histologische Bild dieser Busulfankatarakte ähnelte dem anderer menschlicher und experimenteller Katarakte, was auch immer deren Ursache ist. Elektronenmikroskopische Untersuchungen zeigten, eine Verflüssigung der Linsenrinde mit Morgagnischer Tropfenbildung. Diese Veränderungen fanden sich hauptsächlich in der Region zwischen Äquator und hinterem Linsenpol. Im Gegensatz zu früheren Beschreibungen von Rattenkatarakten zeigte sich eine Proliferation der hinteren Linsenepithelkerne mit der Bildung von Blasenzellen. Wir fanden auch sogenannte kristallähnliche Strahlen (geometrisch reguläre Körnchen) und reichlich entartete Linsenfasermembranen, die sich als vielschichtige, unregelmäßig gefaltete, dem Myelin ähnelnde Formen manifestieren.

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Presented in part at the annual meeting of the Association for Research in Vision and Ophthalmology, Central Division, Chicago, Nov. 1, 2, 1974.

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Hamming, N.A., Apple, D.J. & Goldberg, M.F. Histopathology and ultrastructure of busulfan-induced cataract. Albrecht von Graefes Arch. Klin. Ophthalmol. 200, 139–147 (1976). https://doi.org/10.1007/BF00414363

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  • DOI: https://doi.org/10.1007/BF00414363

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