Successful salvage of post-traumatic metallic foreign body partially retained in the posterior papillary muscle of the left ventricle.

We report a rare case of a 40-year-old man who had suffered from a metallic foreign body which had punctured from the anterior chest wall into the left ventricle caused by trauma without cardiac tamponade. Surgery was performed. Based on the operation findings, the foreign body was diagnosed as a metallic rusted object partially retained in the posterior papillary muscle. It is very rare particularly for its location, penetrating route of injury and without any symptoms.