A Case Report of Pterygium Inversum Unguis Associated with Systemic Lupus Erythematosus
Abstract.Introduction:.Pterygium inversum unguis (PIU) refers to a disorder that distal portion of the nail bed adheres to deva curl arc angel ventral surface of the nail plate, leading to the absence of the distal groove.This is not a common condition in existing literature, thus its pathogenesis has not been elucidated.The occurrence can be conge