Functional classification of bronchial carinae.

Extensive classifications have been in use to describe the bronchial tree; however, the lack of uniform nomenclature to describe the carinae which separate the various bronchi has led to the use of lengthy and often confusing terminologies in reporting and understanding bronchoscopic findings. We have developed a practical classification of main bronchial carinae and suggest the use of abbreviations to describe them. The newer nomenclature is designed to help improve clinical communication, especially with regard to bronchoscopic findings and their clinical implications, among physicians who specialize in pulmonary diseases.