Congenital complete and near-complete tracheal rings are extremely rar
e tracheal deformities. There are fewer than 100 cases of congenital c
omplete tracheal rings, and only four cases of near-complete described
in the literature, Long-segment occurrences of these anomalies are us
ually incompatible with life. We describe the presentation of the long
-segment near complete tracheal ring deformity and long-segment anteri
or fusion of cartilage rings (cartilage sleeve deformity) in a living
infant. The literature is reviewed, and the embryology, presentation,
and management of these extremely rare anomalies are discussed. (C) 19
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