Accidental dislocation of an intracaval temporary filter into the heart in a case of renal cell carcinoma extending into the vena cava.

In a case of renal cell carcinoma extending into the vena cava, a temporary intracaval filter was applied before surgery to prevent pulmonary artery thrombosis. Two days later, the filter accidentally migrated into the right ventricle during defecation. Fortunately, it was successfully removed without damaging cardiac musculature under fluoroscopy.