Published: 2015-06-28

Pterygium inversum unguis

Eswari L, Revathy TN


Pterygium Inversum Unguis (PIU) is a rare nail abnormality characterized by adherent hyponychium to the ventral surface of nail plate. Most of the few cases reported are acquired conditions associated with connective tissue disorders. Very few cases of congenital PIU have been reported. We report for the first time, PIU in two sisters born of second degree consanguineous marriage involving second toe of both feet present since birth.


Pterygium inversum unguis, Hyponychium, Congenital

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