title: Left atrial myxoma with an atrial septal defect: a case report and review of the literature.
abstract: We report a case of a 49 year-old Japanese woman with a left atrial myxoma complicated by an atrial septal defect diagnosed intraoperatively, which was classified as in secundum defect and was 28x110 mm in diameter. The tumor, which was attached by a pedicle to the posterior wall of the left atrium near the posterior commissure of the mitral valve, was removed together with a small portion of the left atrial wall. The postoperative course was uneventful. The pathologic findings were consistent with the diagnosis of myxoma. Since the defect was functionally canceled by the myxoma, the diagnosis of an atrial septal defect was not confirmed preoperatively even by color Doppler echocardiography and cardiac catheterization. Tumor embolization is one of the critical complications of myxoma. Fortunately, she didn't suffer from either systemic or pulmonary emboli. During surgery of myxoma with atrial septal defect, careful manipulation is needed, especially at caval cannulation so as not to damage the tumor directly. In the cases with atrial septal defect or patent foramen ovale, myxomas are generally situated on the interatrial septum. However, in this case the tumor was located on the posterior wall of the left atrium.
authors.affiliation: Second Department of Surgery, Nihon University School of Medicine, 30-1 Oyaguchi-kamimachi Itabashi-ku Tokyo, 173-0032, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Tsukamoto
authors.forename: M
authors.initials: M
authors.lastname: Shiono
authors.forename: Y
authors.initials: Y
authors.lastname: Orime
authors.forename: H
authors.initials: H
authors.lastname: Hata
authors.forename: S
authors.initials: S
authors.lastname: Yagi
authors.forename: S
authors.initials: S
authors.lastname: Kimura
authors.forename: M
authors.initials: M
authors.lastname: Hata
authors.forename: A
authors.initials: A
authors.lastname: Sezai
authors.forename: Y
authors.initials: Y
authors.lastname: Sezai
mesh_terms: D006328:Cardiac Catheterization; D017023:Coronary Angiography; D018618:Echocardiography, Doppler, Color; D005260:Female; D006325:Heart Atria; D006338:Heart Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006344:Heart Septal Defects, Atrial / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007432:Intraoperative Period; D008875:Middle Aged; D009232:Myxoma / Q000150:complications* / Q000175:diagnosis / Q000601:surgery