Although primary mediastinal germ cell tumors are found much more frequentl
y among young males than among other people, we recently encountered a midd
le-aged woman with the disease. The patient was a 59-year-old woman who com
plained mainly of anterior chest pain. Chest CT scans revealed a nonhomogen
eous mass measuring 7 x 7 cm in the anterior mediastinal area, accompanied
by signs suggestive of mediastinal invasion of the tumor. Reduction surgery
was performed. The pathologic diagnosis was mediastinal dysgerminoma. The
patient received postoperative radiochemotherapy but died due to liver meta
stasis 11 months after surgery.