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Nerves and nerve endings in pigmented nevi

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Summary

Electron microscopic investigations revealed numerous unmyelinated nerve fibres in different types of pigmented nevi. The structure of these fibres was similar to the cutaneous unmyelinated fibres. Axon terminals were observed between nevus cells and smooth muscle cells, the former proved to be efferent-type free endings. Pure receptor-type endings were rarely seen.

The contradiction between the receptor-like construction of nevic corpuscles and the abundance of the effector-type endings is discussed.

Zusammenfassung

Elektronenmikroskopische Untersuchungen zeigten zahlreiche marklose Nervenfasern in unterschiedlichen Formen in pigmentierten Naevi. Der Aufbau dieser Fasern war mit den cutanen marklosen Fasern vergleichbar. Nervenendigungen wurden zwischen Naevuszellen und den glatten Muskelzellen beobachtet, die vorausgehenden erwiesen sich als effektorähnliche, freie Endigungen. Echte rezeptorische Endigungen wurden seltener beobachtet. Der Widerspruch zwischen dem rezeptorähnlichen Aufbau der Naevus-Körperchen und der Überzahl an Endigungen vom Effektortyp in diesen wird diskutiert.

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Authors and Affiliations

  1. Department of Dermatology, Medical University of Szeged, Hungary

    Lenke Szekeres

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  1. Lenke Szekeres
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Szekeres, L. Nerves and nerve endings in pigmented nevi. Arch. Derm. Res. 252, 11–16 (1975). https://doi.org/10.1007/BF00582426

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  • DOI: https://doi.org/10.1007/BF00582426

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