title: Livedo reticularis. Signs in the skin of disturbance of blood viscosity and of blood flow.
abstract: The clinical sign of livedo reticularis derives from stasis of blood in the superficial venous drainage systems of the skin. Many factors can delay the flow of de-oxygenated blood away from the skin, notably hyperviscosity of the blood itself and obstruction due to disease affecting dermal arteries, capillaries, or venules.
mesh_terms: D001809:Blood Viscosity; D002056:Burns / Q000503:physiopathology; D006402:Hematologic Diseases / Q000175:diagnosis; D006801:Humans; D012039:Regional Blood Flow; D012867:Skin / Q000098:blood supply* / Q000293:injuries; D012871:Skin Diseases / Q000209:etiology / Q000503:physiopathology*; D014652:Vascular Diseases; D014680:Veins