Mature Teratoma Penetrating the Upper Lobe of the Left Lung Resected by Robot-assisted Thoracic Surgery—Report of a Case

• Published in: Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) Vol. 84; no. 9; pp. 1424 - 1429
• Main Authors: NAKANO, Tomoharu, OKUDA, Katsuhiro, YOKOTA, Keisuke, HANEDA, Hiroshi
• Format: Journal Article
• Language: Japanese; English
• Published: Japan Surgical Association 2023
• Subjects: mediastinal tumor; penetration; robot-assisted thoracic surgery
• ISSN: 1345-2843; 1882-5133
• DOI: 10.3919/jjsa.84.1424

A 20-year-old woman presented with left anterior chest pain and fever. A chest radiograph revealed a bulge impacting the left hilar region. A chest computed tomography revealed an anterior mediastinal tumor and pneumonia in the upper lobe of the left lung. After undergoing antibiotic treatment for pneumonia, the patient underwent robot-assisted thoracoscopic surgery via a subxiphoid approach for resection of the anterior mediastinal tumor and partial resection of her left upper lobe. A histological examination revealed a mature teratoma that had penetrated the upper lobe of the left lung. We used robot-assisted thoracoscopic surgery to perform a complete resection of the mature mediastinal teratoma penetrating the left lung. She was discharged on the third postoperative day without any complications. Even in cases where a mediastinal tumor has penetrated, depending on the case, it is suggested that the operation can be completed under the endoscope due to the multi-joint and precise operability of the robot.