Bronchial adenoma is one of the most interesting and controversial lesions involving the bronchial tree. The difference of opinion among observers with regard to the exact nature of this lesion, its relation to bronochogenic carcinoma and its proper method of treatment is well known. In order to try to evaluate properly these various factors we undertook the following study. Our observations are based on a review of data on 86 consecutive patients seen at the Mayo Clinic in whom the diagnosis of adenoma of the bronchus was established by microscopic examination of tissue removed from the tumor. No cases were included in which the adenoma originated in the trachea. Complete information was available concerning the course of the adenoma in 74 of the cases. In the remaining 12 cases this information was not complete.
The group consisted of 45 men and 41 women. Their ages varied from 15 to 67