[en] Objective: To explore the clinical and image features of uterine leiomyomatosis extending through the inferior vena cava (IVC) into the right cardiac cavities. Methods: A retrospective study was performed in 5 patients with uterine leiomyomatosis extending through IVC into the right cardiac cavities. All 5 cases underwent the examination of chest X-ray and UCG. 3 patients underwent the examination of EBCT. 2 patients underwent the examination of MRI and angiography. Results: Uterine leiomyosarcoma extending through IVC into the right cardiac cavities was diagnosed in 2 patients and uterine leiomyomatosis extending through IVC into the right cardiac cavities was diagnosed in 1 case on EBCT. Uterine leiomyomatosis extending through IVC into the right cardiac cavities was diagnosed in 2 patients on MRI and angiography. In 3 of the 5 patients, the diagnosis of uterine leiomyomatosis was demonstrated by surgery-pathology. Conclusion: Uterine leiomyoma extending through IVC into the right cardiac cavities is rare, and this situation is called uterine leiomyomatosis. Clinical and imaging findings have some specific features and combined imaging examinations are necessary. (authors)