A Huge Mediastinal Organizing Hematoma Causing Reversal of Atrial Septal Defect Shunt Flow.

Author: Eun Kyoung KIM ¹ ; Sang Chol LEE ; Sung Bum PARK ; Silvia PARK ; Sunha BAHNG ; Yeon Hyeon CHOE ; Kiick SUNG
Author Information

1. Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. sclee@skku.edu
Publication Type:Case Report
Keywords: Mediastinal cyst; Atrial septal defect; Hematoma
MeSH: Anoxia; Dyspnea; Echocardiography; Female; Heart; Heart Atria; Heart Septal Defects, Atrial; Hematoma; Hemorrhage; Humans; Mediastinal Cyst; Middle Aged; Thorax
From:Korean Circulation Journal 2011;41(2):97-100
CountryRepublic of Korea
Language:English
Abstract: We report a case of a 46-year-old woman who presented with subacute exertional dyspnea and severe hypoxia. A large cystic mass compressing the right side of the heart along with right-to-left atrial shunt flow through an alleged atrial septal defect (ASD) were detected on echocardiography. CT scan of the chest and MRI of the heart revealed a loculated cystic mediastinal mass with hemorrhage measuring 5.5x8 cm compressing the right atrium and ventricle. The patient underwent cyst resection and primary closure of the ASD. This report illustrates a case of an unusual symptomatic pericardial mass compressing the right atrium and ventricle in a patient with an secundum ASD.