CTICasesIntravenous Leiomyomatosis
Imaging findings
CT angiography shows a large, low-grade smooth muscle mass filling the inferior vena cava and extending into the right atrium. The tumor is contiguous with a pelvic mass in a patient with a prior hysterectomy.
Key takeaways
Intravenous leiomyomatosis is a rare, histologically benign smooth muscle tumor that grows along the venous system. It typically originates from uterine leiomyomas and can extend into the IVC and right heart. Despite its benign pathology, it requires complete surgical resection to prevent cardiovascular obstruction.
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