Giant mediastinal neuroenteric cyst with intraspinal neurenteric cyst

Mediastinal giant neuroenteric cyst is very rare lesion. We report the imaging characteristic in a 13-year-old boy with giant and small neuroenteric cyst which had a histopathologically proven in mediastinal and cervical spinal canal, respectively. The giant neuroenteric cyst was visualized conspicuously to be in communication with the small cyst via the vertebral defect in magnetic resonance imaging (MRI). MRI could be extremely valuable in suggesting the diagnosis.