Pterygium Unguis

Pterygium unguis (also known as "Dorsal pterygium") forms as a result of scarring between the proximal nailfold and matrix, with the classic example being lichen planus, though it has been reported to occur as a result of sarcoidosis and Hansen's disease.

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Pterygium Unguis - See Also
... Pterygium inversum unguis Nail anatomy List of cutaneous conditions. ...