title: An unexpected tumor causing right ventricular obstruction.
abstract: A 58-year-old male with a history of a soft tissue sarcoma in remission presented with a 2 weeks history of progressive dyspnea. Transthoracic echocardiography showed right ventricular dilation; right ventricular systolic pressure (RVSP) of 110 mm Hg, and a lobulated mass in the right ventricular outflow tract (RVOT) causing obstruction. Microbubble contrast was administered showing perfusion within the mass, which suggested malignancy. A CT pulmonary angiogram (CTPA) confirmed the presence of the mass in the RVOT without evidence of pulmonary embolism. This case demonstrates the importance of the multimodality imaging approach for the differential diagnosis of masses in the RVOT.
authors.affiliation: Cardiology Department, National Institute of Cardiology, "Ignacio Chávez, Mexico City, Mexico.
authors.forename: Jorge
authors.initials: J
authors.lastname: Padilla-Ibarra
authors.affiliation: Echocardiography Laboratory, National Institute of Cardiology, "Ignacio Chávez" , Mexico City, Mexico.
authors.forename: Hugo
authors.identifier: http://orcid.org/0000-0003-0336-5593
authors.initials: H
authors.lastname: Rodríguez Zanella
authors.affiliation: Cardiac Magnetic Imaging Laboratory, National Institute of Cardiology, "Ignacio Chávez" , Mexico City, Mexico.
authors.forename: Roberto
authors.initials: R
authors.lastname: Cano Zarate
authors.affiliation: Nuclear Medicine Laboratory, National Institute of Cardiology, "Ignacio Chávez" , Mexico City, Mexico.
authors.forename: Erick
authors.initials: E
authors.lastname: Alexánderson-Rosas
mesh_terms: D000072226:Computed Tomography Angiography / Q000379:methods*; D003287:Contrast Media; D003937:Diagnosis, Differential; D004452:Echocardiography / Q000379:methods*; D006338:Heart Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging*; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008297:Male; D045423:Microbubbles; D008875:Middle Aged; D014694:Ventricular Outflow Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology*
chemical_list: D003287:Contrast Media
keywords: cardiac magnetic resonance imaging; cardiac tumor; contrast echocardiography; sarcoma