Neural arch dysplasia of the sixth cervical vertebra. "Congenital cervical spondylolisthesis".
D000293:Adolescent; D002574:Cervical Vertebrae / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000293:injuries; D006801:Humans; D008297:Male; D011859:Radiography; D013168:Spondylolisthesis / Q000151:congenital / Q000000981:diagnostic imaging*