Mediastinal Mature Teratoma With Rupture Into Pleural Cavity Due to Blunt Trauma

• Published in: The Annals of thoracic surgery Vol. 93; no. 3; pp. 990 - 992
• Main Authors: Miyazawa, Masahisa, MD, Yoshida, Kazuo, MD, Komatsu, Kazunori, MD, Kobayashi, Nobutaka, MD, Haba, Yoshiaki, MD
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.03.2012; Elsevier
• Subjects: Adolescent; Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy; Biological and medical sciences; Cardiology. Vascular system; Cardiothoracic Surgery; Humans; Male; Mediastinal Neoplasms - complications; Medical sciences; Pleural Cavity; Pneumology; Rupture, Spontaneous - etiology; Surgery; Teratoma - complications; Wounds, Nonpenetrating - complications; 13; Cavity; Mediastinum; Rupture; Tumor; Anesthesia; Circulatory system; Cardiology; Trauma; Mature teratoma
• ISSN: 0003-4975; 1552-6259
• DOI: 10.1016/j.athoracsur.2011.08.022

We report a rare case of mediastinal mature teratoma with rupture due to blunt trauma. A 15-year-old boy had received a strong head-butt in the left upper chest wall and was admitted with the sudden onset of left-sided severe chest pain and dyspnea. Chest computed tomography (CT) scan on admission revealed a heterogeneous mass lesion in the anterior mediastinum. The contrast-enhanced CT scans obtained 2 days after admission showed not only mediastinal mass lesion but also left pleural effusion. On the radiologic finding at 5 months later, the lesion became larger and was thought to be a typical mediastinal mature teratoma. The patient underwent extirpation of the tumor. Microscopically, the tumor was typically composed of adult-type tissues and was confirmed to be mature teratoma.