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Epidermal cell — leukocyte interactions in spongiform pustules of Kogoj

An Ultrastructural Study

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Summary

Spongiform pustules from impetigo herpetiformis in children were examined by electron microscopy. Besides the ultrastructural features described by Rupec, close interactions between infiltrating neutrophilic leukocytes and keratinocytes was observed. Within the lesion, the cell membranes at the contacting surfaces of a leukocyte and a keratinocyte occasionally were partially invisible and, through this cytoplasmic continuity, the granules of the leukocyte seemed to move into the adjacent keratinocyte. Also a leukocyte was seen to invaginate deeply into a keratinocyte. This ultrastructure is likely to be further responsible for the light microscopic appearance of unicellular pustule formation.

Zusammenfassung

Die spongiforme Pustel bei Impetigo herpetiformis bei Kindern wurde mittels Elektronenmikroskopie untersucht. Außer den von Rupec beschriebenen ultrastrukturellen Veränderungen wurde eine innige Beziehung zwischen den eingewanderten neutrophilen Leukocyten und den Keratinocyten beobachtet. Innerhalb des Pustelbereiches waren gelegentlich die Zellmembranen an der Kontaktstelle der Leukocyten und der Keratinocyten teilweise unsichtbar, und es scheint, daß die Granula der Leukocyten durch diese Cytoplasma-Kontinuität sich in die benachbarten Keratinocyten hineinbewegen. Ferner wurde eine tiefe Invagination von einem Leukocyten in einen Keratinocyten beobachtet. Diese Ultrastruktur scheint für den lichtmikroskopischen Eindruck einer unicellulären Pustulation verantwortlich zu sein.

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Komura, J., Takigawa, M. & Ofuji, S. Epidermal cell — leukocyte interactions in spongiform pustules of Kogoj. Arch. Derm. Res. 249, 321–328 (1974). https://doi.org/10.1007/BF00557892

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  • DOI: https://doi.org/10.1007/BF00557892

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