Splinter Hemorrhage
摘要
Splinter hemorrhages are short, red, brown, and/or black longitudinal streaks that are most commonly localized to the distal one-third of the nail plate [1]. They are caused by the extravasation of blood from ruptured capillaries that are arranged longitudinally in the nail bed and were named due to their similar appearance to a wood splinter [2]. Previous studies have reported an 11–66% prevalence of splinter hemorrhages among hospitalized patients [3–5]. While splinter hemorrhages may be idiopathic, benign nail findings, they are also classically associated with serious medical conditions, including bacterial endocarditis, and can serve as an important clue to underlying disease processes [1, 2].