- A dictionary of medical eponyms

Arneth's count

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Classification of poly-morphonuclear neutrophils or eosinophile leukocytes in groups or class with the help of differential counting based on the number of lobes (1 - 5) in the nucleus. Termed stages 1 to 5, respectively. The more mature the cell the greater the number of lobes. An increased number of lobes is termed a shift to the right and is seen in megaloblastic anaemias. No longer in use.


  • J. Arneth:
    Die neutrophilen weissen Blutkörperchen bei Infektions-Krankheiten.
    Habilitation paper, Jena 1903.
  • Die neutrophilen weissen Blutk√∂rperchen bei Infektions-Krankheiten.
    Jena, G. Fischer, 1904.

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