Neurenteric cyst of the mediastinum.
D000015:Abnormalities, Multiple; D002574:Cervical Vertebrae / Q000002:abnormalities; D004707:Endoderm / Q000002:abnormalities; D006801:Humans; D007223:Infant; D008297:Male; D008476:Mediastinal Cyst / Q000151:congenital* / Q000000981:diagnostic imaging* / Q000196:embryology; D008648:Mesoderm / Q000002:abnormalities; D011859:Radiography; D013904:Thoracic Vertebrae / Q000002:abnormalities