- A dictionary of medical eponyms

Blaschko's lines

Related people

The pattern assumed by many different naevoid and acquired skin diseases on the human skin and mucosae. The cause of the pattern of Blaschko lines is unknown; they do not follow nerves, vessels, or lymphatics. In 1901, on the occasion of the 7th Congress of the German Dermatological Society held in Breslau, Blaschko presented his observations on various linear dermatoses. He pointed out that the lines described by these conditions did not only not correspond to any known anatomical basis, but were remarkably consistent both from patient to patient and even from one disease to another. Blaschko proposed an embryonic origin for these lines, but did not elaborate. The lines may represent a clinical expression of a genetically programmed clone of altered cells, perhaps first expressed during embryogenesis


  • A. Blaschko:
    Die Neven-verteilung in der Haut in ihrer Beziehung zu den Erkrankungen der Haut.
    Beilage zu den Verhandlungen der Deutschen Dermatologischen Gesellschaft VII Congress, Breslau, 1901.
  • R. Jackson:
    The lines of Blaschko: a review and reconsideration: Observations of the cause of certain unusual linear conditions of the skin.
    The British Journal of Dermatology, October 1976, 95(4): 349-360.

What is an eponym?

An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

What is Whonamedit?

Whonamedit.com is a biographical dictionary of medical eponyms. It is our ambition to present a complete survey of all medical phenomena named for a person, with a biography of that person.


Whonamedit? does not give medical advice.
This survey of medical eponyms and the persons behind them is meant as a general interest site only. No information found here must under any circumstances be used for medical purposes, diagnostically, therapeutically or otherwise. If you, or anybody close to you, is affected, or believe to be affected, by any condition mentioned here: see a doctor.