Key result
Endobronchial ultrasound-guided transbronchial needle aspiration safely and successfully diagnosed a pulmonary artery filling defect as metastatic leiomyosarcoma.
Case Report (n=1)
No
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EBUS-TBNA is a safe and feasible minimally invasive tool for diagnosing thoracic endovascular lesions, such as metastatic pulmonary artery leiomyosarcoma, which can be misdiagnosed as pulmonary embolism.
Leiomyosarcoma of the pulmonary vasculature is an extremely rare condition that has not been previously diagnosed by endobronchial ultrasound (EBUS) bronchoscopy. We present the case of a 43-year-old white male with a history of leiomyosarcoma who was diagnosed with pulmonary embolism 2 years ago. As the filling defects on follow-up chest computed tomography continued to worsen despite anticoagulation, EBUS-guided transbronchial needle aspiration (EBUS-TBNA) of the right pulmonary artery lesion was safely and successfully performed. Cytopathological examination revealed the "thrombus" to be metastatic leiomyosarcoma. In experienced hands, and carefully selected cases, EBUS-TBNA seems to be a safe and effective in diagnosing thoracic endovascular lesions.
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Harris et al. (2014) conducted a case report in Metastatic leiomyosarcoma of the pulmonary artery (n=1). Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) was evaluated on Cytopathological diagnosis. Endobronchial ultrasound-guided transbronchial needle aspiration safely and successfully diagnosed a pulmonary artery filling defect as metastatic leiomyosarcoma.
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