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CONGENITAL ONYCHODYSPLASIA OF THE INDEX FINGERS
Author(s) -
Kikuchi Ichiro,
Ishii Yoshimitsu,
Idemori Masahiro,
Ogata Katsumi
Publication year - 1981
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/j.1346-8138.1981.tb02581.x
Subject(s) - nail (fastener) , etiology , medicine , anatomy , ischemia , numerical digit , index (typography) , cardiology , pathology , mathematics , computer science , materials science , arithmetic , world wide web , metallurgy
Two cases of congenital onychodysplasia of the index fingers (COIF), one of them with an abnormal range of active motion of the digits, were reported. The characteristic location of a nail, or nails in micronychia and polyonychia of COIF and the involvement of the nail and the bone may be explained by the anatomy of the digit. That is, the radially more pronounced involvement of the nail may be related to the relatively smaller size of the artery of the radial aspect. This may support the transient ischemia theory of Ohta and Haseda (1) in fetal life, though the true etiology of COIF still remains obscure.