Benign Mature Mediastinal Dysembryoma with Pulmonary Extension Revealed by Recurrent Hemoptysis in a Young Woman

We report one case of mature mediastinal teratoma with pulmonary extension surgically diagnosed in a 22-year-old woman complaining of recurrent hemoptyses for which no etiological explanation could be found. Thoracic surgery was only decided on after three embolizations proved ineffective.