Acute respiratory failure secondary to a complete tracheal ring.

This is a case presentation of a neonate with McKusick-Kaufman Syndrome (hydrometrocolpos, polydactyly and congenital heart disease) accompanied by a complete tracheal ring in the distal trachea. This undiagnosed anomaly caused acute respiratory failure after another surgical procedure. Emergent bronchoscopy revealed the diagnosis and the ring was successfully dilated. This is the only known survivor of a complete tracheal ring associated with this syndrome.