title: Left atrial mass caused by metastatic renal cell carcinoma: an unusual site of tumor involvement mimicking myxoma.
abstract: We report a case of a left atrial mass echocardiographically mimicking myxoma, in a patient with renal cell carcinoma. The mass was pathologically confirmed to be metastatic carcinoma, which had entered the left atrium from a mediastinal lymph node, via direct invasion of a pulmonary vein, illustrating the potential for unusual routes of tumor spread into the heart and the importance of obtaining a tissue diagnosis in such cases.
authors.affiliation: Mission Cardiology Heart Failure Program, Mission Internal Medical Group, Mission Viejo, CA 92691, USA. mmiyamoto@mimg.com
authors.forename: Michael I
authors.initials: MI
authors.lastname: Miyamoto
authors.forename: Michael H
authors.initials: MH
authors.lastname: Picard
mesh_terms: D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging / Q000556:secondary*; D003937:Diagnosis, Differential; D017548:Echocardiography, Transesophageal; D006325:Heart Atria / Q000000981:diagnostic imaging*; D006338:Heart Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009232:Myxoma / Q000175:diagnosis*