ArticleBMJ case reports2026
Transvascular endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) to confirm urothelial carcinoma metastasis to the pulmonary artery.
Article in BMJ case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Tumours within the pulmonary arteries provide a diagnostic challenge due to their similar appearance to pulmonary emboli. Often, the decision to sample is multidisciplinary and the best approach to take is often unknown. Here we describe a case of urothelial carcinoma which metastasised to the mediastinum with evidence of tumour burden within the pulmonary artery. Sampling of this by endovascular and thoracoscopic means was unsuccessful; however, we were able to provide a diagnosis using direct visualization with endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA). This report is the first of a central pulmonary artery tumour caused by urothelial carcinoma biopsied by EBUS-TBNA in the English literature. We describe the diagnostic challenges and steps in evaluating suspected tumour emboli with a focus on transbronchial needle aspiration.
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