[A case of traumatic lung cyst]

Traumatic lung cyst is an uncommon lung injury due to closed chest trauma. A 5-year-old boy was admitted to our hospital after being run over by motor vehicle. Computed tomography of the chest demonstrated multiple cystic lesions. This case was diagnosed as traumatic lung cysts. Computed tomography taken 37 days after initial injury showed complete resolution of the cysts. Computed tomography was useful in diagnosing traumatic lung cyst and following its clinical course.