splinter haemorrhage

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splinter haemorrhage2016-11-23T20:50:27+00:00

splinter haemorrhage 

splinter haemorrhage image from New Medical Terms

splinter haemorrhage in nail bed

CARDIOLOGY, DERMATOLOGY

One or more small linear subungual haemorrhages which are red when fresh, and brown when aged, located at the distal 13 of the nailbed, and classically associated with mitral stenosis

Pathogenesis The blood “leaks” into the avascular squames under the fingernails due to microemboli and/or increased capillary fragility; while splinter haemorrhages–SHs are characteristic of acute and subacute bacterial endocarditis, they are more commonly due to trauma, occur in up to 10% of normal subjects and in 40% of patients with mitral stenosis. SHs also occur in the retina in papilloedema, due to retinal vein occlusion, subarachnoid haemorrhage or, rarely, trichinosis. 

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