- A dictionary of medical eponyms

Biernacki's sign

Related people

Analgesia to percussion of the ulnear nerve in tabes dorsalis and dementia paralytica. In healthy persons this percussion will cause pain.


  • F. A. Biernacki:
    Analgesi der Ulnarisstammes als Tabessymptom.
    Neurologisches Centralblatt, 1894, 12: 242-246.

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.