Bronchial Adenomata

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Abstract
THE TERM "bronchial adenoma" was introduced by Kramer in 1930 to differentiate a group of primary endobronchial tumors characterized by slow growth, low-grade malignant potential, and long-term host survival.10 The vagaries of these tumors have caused, repeatedly, delay in their discovery and difficulties in their management, so that a clinical review seems warranted. A total of 43 cases of bronchial adenoma seen at the University of Wisconsin Hospitals from 1943 to 1962 were reviewed for analysis. Two additional instances, which lack positive endobronchial histological data, are included for discussion because of certain unusual aspects. Excluded from this study are three instances of polypoid endobronchial lesions (mentioned now to establish a proportion in frequency); one leiomyoma, one fibroma, and one true hamartoma. Historical Background Bronchial adenoma was first recognized at autopsy examination in 1882.15 Half a century later, Kramer10 published a clinical description. In 19378 Hamperl reported