[Primary chondrosarcoma of the pulmonary artery]

A 69-year-old woman who had progressive dyspnea, edema and oliguria was diagnosed as primary sarcoma arising in the pulmonary trunk by preoperative examination. She received thoracotomy and total resection of the tumor in the pulmonary trunk utilizing cardiopulmonary bypass. A microscopical examination revealed that the tumor had the features of the chondrosarcoma originating in the pulmonary artery. There have been very few reports on chondrosarcoma in the pulmonary artery. It is reported that the prognosis of the sarcoma in the pulmonary artery is less favorable, however, this case had uneventfully postoperative course and no signs of recurrence one year after operation.