Dynamic ultrafast high resolution CT findings in a case of Swyer-James syndrome.

In a patient with Swyer-James syndrome, the dynamic, ultrafast HRCT (DUHRCT) findings show multifocal bilateral air-trapping that was not seen on chest radiography or conventional CT scan. This technique accentuates the air trapping associated with post-infectious obliterative bronchiolitis, which is underappreciated by plain chest radiography and conventional CT.