Extracellular RNA Markers of Liver Disease and Cancer

Inclusion Criteria: * Lab results from within the previous 90 days. * Diagnosis of HCC or biliary tract cancer * Diagnosis of cirrhosis based on histology, imaging, or ultrasound. * Diagnosis of a chronic liver disease without cirrhosis. Exclusion Criteria for the HCC/biliary tract cancer group: * Prior solid organ transplant. * Previous cancer history with the last 5 years (excluding non-melanoma skin cancer), participation in a treatment trial for HCC Exclusion criteria for the cirrhosis and chronic liver disease groups: * Prior solid organ transplant. * Previous or current cancer history within the past 5 years (excluding non-melanoma skin cancer).