Palmar Erythema Photo Does Anyone Know What Causes Palmar Erythema With A Diagnosis Of Liver Cirrhosis?

Does anyone know what causes Palmar Erythema with a diagnosis of liver cirrhosis? - palmar erythema photo

I have millions of sites that the state is a symptom of portal hypertension associated with liver cirrhosis, but need to know the mechanism behind it. What are the causes? Any smarties out there?