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J Thorac Cardiovasc Surg 2004;127:1845-1847
© 2004 The American Association for Thoracic Surgery
Brief communication |
a Department of Thoracic Surgery, National Fukuoka-Higashi Hospital, Fukuoka, Japan
b Department of Cardiovascular Surgery, Wajiro Hospital, Fukuoka, Japan
c The Second Department of Surgery, Fukuoka University, School of Medicine, Fukuoka, Japan
Received for publication December 10, 2003; accepted for publication January 7, 2004.
* Address for reprints: Shinichi Maekawa, MD, 1-1-1, Chidori, Koga-City, Fukuoka 811-3195, Japan
maekawas@fukuokae2.hosp.go.jp
| The first 20% of the full text of this article appears below. |
Clinical summary
During routine examination at school, a 16-year-old girl displayed an abnormal mass shadow on chest radiography and abnormal electrocardiographic results, indicating incomplete right bundle-branch block. The patient was referred to us for further evaluation. Chest radiography revealed a large mass in the mid-lower mediastinum that silhouetted bilateral heart borders and conformed to the shape of the heart, simulating cardiomegaly (Figure 1). Physical examination revealed no abnormalities. Laboratory data were within normal ranges, except for an incidental finding of increased serum carbohydrate antigen 19-9 (CA19-9) levels at 102.44 U/mL (normal, <37.0 U/mL). Computed tomography (CT) of the chest identified a massive heterogeneous mass with fat attenuation mingled with soft tissue extending widely into the bilateral inferior hemithoraces (Figure 2). Magnetic resonance imaging (MRI) of the chest displayed whorls of signal hyperintensity intermixed with areas of intermediate intensity on T2-weighted imaging (Figure 3). Finally, CT-guided fine-needle aspiration
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