title: The expanding horizons of endobronchial ultrasound: diagnosis of a tumor embolism.
abstract: A 51-year-old woman was given a diagnosis of primary retroperitoneal synovial sarcoma, which was surgically removed, and she was subsequently treated with chemotherapy and radiotherapy. Five years later, the patient was readmitted with a 1-month history of progressive dyspnea and was initially given a diagnosis of bilateral pulmonary embolism. Angiography performed some time later revealed progression of the previous filling defects and the appearance of two new nodular endovascular images. Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) was performed, and the cytologic analysis of the cell aspirate was compatible with endovascular metastatic sarcoma. In conclusion, EBUS-TBNA in the appropriate setting is an effective method for sampling endovascular lesions, adding pathologic information and allowing for early and accurate diagnosis.
authors.affiliation: Department of Pulmonary Medicine, Institut Clínic del Tórax, Barcelona, Spain.
authors.forename: Núria
authors.initials: N
authors.lastname: Chamorro
authors.affiliation: Department of Pulmonary Medicine, Institut Clínic del Tórax, Barcelona, Spain. Electronic address: iblanco2@clinic.ub.es.
authors.forename: Isabel
authors.initials: I
authors.lastname: Blanco
authors.affiliation: Department of Radiology, Barcelona, Spain.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Sánchez
authors.affiliation: Department of Pathology, Centro de Diagnóstico Biomédico (CDB), Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Spain.
authors.forename: Jose
authors.initials: J
authors.lastname: Ramírez
authors.affiliation: Department of Pulmonary Medicine, Institut Clínic del Tórax, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Spain.
authors.forename: Joan A
authors.initials: JA
authors.lastname: Barberà
authors.affiliation: Department of Pulmonary Medicine, Institut Clínic del Tórax, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Agustí
mesh_terms: D001707:Biopsy, Needle; D019160:Endosonography / Q000379:methods*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008875:Middle Aged; D049268:Positron-Emission Tomography; D011655:Pulmonary Embolism / Q000473:pathology*; D012186:Retroperitoneal Neoplasms / Q000473:pathology*; D013584:Sarcoma, Synovial / Q000556:secondary*; D014057:Tomography, X-Ray Computed; D018084:Ultrasonography, Interventional / Q000379:methods*