Non-infective or marantic endocarditis is rare . A form of sterile endocarditis is termed Libman-Sacks endocarditis ; this form occurs more often in patients with lupus erythematosus and the antiphospholipid syndrome . Non-infective endocarditis may also occur in patients with cancers, particularly mucinous adenocarcinoma. References ^ Durack D, Lukes A, Bright D