Life-threatening and Rapidly Growing Teratoma in the Anterior Mediastinum

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  • Omachi Naoki
    Department of Internal Medicine, National Hospital Organization Kinki-chuo Chest Medical Center, Japan
  • Kawaguchi Tomoya
    Department of Respiratory Medicine, Osaka City University Graduate School of Medicine, Japan
  • Shimizu Shigeki
    Department of Pathology, National Hospital Organization Kinki-chuo Chest Medical Center, Japan
  • Okuma Tomohisa
    Department of Radiology, Osaka City University Graduate School of Medicine, Japan
  • Kitaichi Masanori
    Department of Pathology, National Hospital Organization Kinki-chuo Chest Medical Center, Japan
  • Atagi Shinji
    Department of Internal Medicine, National Hospital Organization Kinki-chuo Chest Medical Center, Japan
  • Yoon Hyung-Eun
    Department of Surgery, National Hospital Organization Kinki-chuo Chest Medical Center, Japan
  • Matsumura Akihide
    Department of Surgery, National Hospital Organization Kinki-chuo Chest Medical Center, Japan

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Abstract

This report describes the case of a 23-year-old man with a mediastinal teratoma. Five months before admission, a chest radiograph during a routine health checkup was normal. Four months before admission, the patient developed sudden onset of mild right-sided chest pain. He gradually developed dyspnea and was admitted to our hospital. Computed tomography revealed a giant tumor that was markedly compressing the right atrium. Urgent surgery was performed, and a ruptured, benign mature teratoma was diagnosed. Mature mediastinal teratomas are benign tumors, but they can rupture and have the potential to grow rapidly, potentially leading to life-threatening complications.<br>

Journal

  • Internal Medicine

    Internal Medicine 54 (19), 2487-2489, 2015

    The Japanese Society of Internal Medicine

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