Abstract
Pulmonary blastoma is a rare primary malignancy of the lung. It is now recognized in two forms: adult type pulmonary blastoma and childhood pleuropulmonary blastoma. The clinical characteristics, diagnosis and treatments of adult type pulmonary blastoma are discussed in this article. The clinical records of 5 patients with adult type pulmonary blastoma admitted in Cancer Center, Sun Yet-sen University from 1964 to 2004 were analyzed and the literature on pulmonary blastoma was reviewed. Three patients were male and two were female with the ages ranged from 22 years old to 70. Their symptoms consisted mainly of cough, hemoptysis and chest pain. The pulmonary blastomas were mainly manifested as a solitary parenchymal mass of the lung on chest radiograph and CT. None of these patients was diognosed by fibrobronchoscopy nor sputum cytology. Three patients underwent lobectomy, one underwent pneumonectomy, and these four patients underwent mediastinal lymph node resection also. The fifth one received wedge resection and postoperative chemotherapy. At the end of follow-up, three patients died and two was alive, and the survival time was from 6 months to 11 years. Pulmonary blastoma is difficult to be diagnosed before operation. Surgery is the best therapeutic choice up to now. It has poor response to radiotherapy and chemotherapy. The prognosis of patient with pulmonary blastoma is variable.
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