Swyer-James syndrome--unilateral hyperlucent lung syndrome. A case report and review.

Swyer-James syndrome is a pulmonary condition acquired following bronchiolitis obliterans early in life. Clinically characterized by repeated bouts of pulmonary infections, Swyer-James syndrome is characterized radiographically by a unilateral small, hyperlucent lung that demonstrates diminished arterial supply to the involved lung, air-trapping, and bronchiectasis. Radioimaging procedures may reveal otherwise unsuspected bilateral involvement. A 14-year-old Caucasian female with classic findings of Swyer-James syndrome is presented. The differential diagnosis of conditions that may present with a unilateral hyperlucent lung is discussed. Therapy is aimed primarily at control of the intercurrent episodes of bacterial pneumonia.