From 1970 to 1997

67 patients with pulmonary hamartoma were operated on in our hospital. There were 38 men and 29 women with a M/F ratio of 1. 3: 1. The mean age was 47 years （range 21 to 82 years）. The peak incidence was 40 to 60 years. 39% Patients had pulmonary symptoms: hemoptysis

cough

phlegm and chest pain. All were solitary. 68. 7% tumors were located in right lung and 64. 2% in upper or middle lobe. 80. 6% hamartomas were less than 3 cm in transverse diameter. On chest films

the opacity was homogeneous in 79.1% cases

heterogeneous in 20.9% and calcifications in 9.0%. The vast majority of shadows were heterogeneous on CT films. Operation is the best treatment for hamartomas. Postoperative mortality was 1. 5%. There was none recurrences and canceration during the follow-up （mean 14 years）.