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Yellow nail syndrome: the nail that grows half as fast grows twice as thick
Author(s) -
D. L. Moffitt,
Dilek Berker
Publication year - 2000
Publication title -
clinical and experimental dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 78
eISSN - 1365-2230
pISSN - 0307-6938
DOI - 10.1046/j.1365-2230.2000.00563.x
Subject(s) - thumb , nail (fastener) , nail plate , anatomy , medicine , surgery , materials science , paronychia , metallurgy
We report a case of a 51‐year‐old man with yellow nail syndrome (YNS). 1 During a 23‐week period of study, the dynamics of thumbnail growth were compared between one affected thumb and the normal contralateral thumb. Longitudinal nail growth was normal (0.46 mm/week) in the normal thumb and double that of the affected thumb (0.23 mm/week). Thickness of nail at the free edge in the affected thumb (0.97 mm) was twice that of the normal thumb (0.57 mm). Within the nail plate in the dorso‐ventral axis there were 50% more cells in the affected thumb (358) in comparison with the contralateral control (242). This case illustrates that rate of longitudinal growth does not necessarily reflect nail plate production.