A rare case of intravenous leiomyomatosis extending along the right ovarian vein, right internal iliac, and inferior vena cava to the right atrium observed by [18F]F-FAPI PET/CT
A 43-year-old woman suspected to have ovarian malignancy with venous cancer thrombus with venous cancer thrombus was diagnosed as intravenous leiomyomatosis (IVL) by histopathological diagnosis.