Abstract
Intracardiac masses are a rare differential diagnosis in patients who present heart failure symptoms, these are classified by many authors as neoplastic or non-neoplastic, dependent or not on the heart chambers. Being able to differentiate and classify intracardiac masses is very important because treatment and prognosis depend on it. Intravascular leiomyomatosis is one of the rarest tumors, characterized by direct overgrowth of a uterine leiomyoma through adjacent veins with an unusual growth pattern. To date, less than 300 cases have been reported, with proliferation to the heart chambers being even rarer. We present the case of a female who presented to the emergency department due to dyspnea and palpitations, during his approach, a mass from the inferior vena cava was found causing intermittent tricuspid obstruction. Later it was documented as coming directly from the uterus, diagnosing intravascular leiomyoma by pathology.
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