Bilateral tracheal bronchi.

A case of bilateral tracheal bronchi, first diagnosed at 14 months, is reported in a child who is currently alive and well at more than two years of age. This is only the second such case to be described in the world literature and is the only case to survive the first year of life. A tracheal accessory lung was also present. The varieties of tracheal bronchi are described. The importance of considering this uncommon abnormality in a number of clinical situations is emphasized.