- A dictionary of medical eponyms

Iso-Kikuchi syndrome

Related people

A hand abnormality characterized by congenital anonychia, micronychia, or polynychia of the index finger. Inheritance, if any, is uncertain.

Ichiro Kikuchi named the condition congenital onychodysplasia of the index fingers. The term Iso-Kikuchi syndrome was introduced in 1980 by Robert Baran, a French dermatologist in Cannes.

We thank Ichiro Kikuchi for submitting information.


  • R. Iso:
    [Congenital defect of the nail of the index finger and its reconstruction].
    Rinsho Seikei Geka [Clinical Orthopaedic Surgery], 1969, 4: 672-677. [Congenital defect of the nail of the index finger and its reconstruction].
    Seikei Geka [Orthopedic Surgery] 1969, 20: 1383-1384.
  • I. Kikuchi:
    Congenital onychodysplasia of the index fingers.
    Archives of Dermatology, Chicago, 1974, 110: 743-746.
  • R. Baran:
    Syndrome d'Iso et Kikuchi (COIF Syndrome). (2 cas) avec revue de littérature (44 cas).
    Annales de dermatologie et de véneréologie, Paris, May 1980, 107 (5): 431-435.
  • Tilo Biedermann, Carl Georg Schirren, Hella Schirren, Christian Sander:
    Kongenitale Onychodysplasie (Iso-Kikuchi-Syndrom).
    Congenital onychodysplasia (Iso-Kikuchi syndrome).

    Der Hautarzt, 1995, 46 (1): 53-56.

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.