Cervicomediastinal thymic cyst.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003560:Cysts / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008206:Lymphatic Diseases / Q000175:diagnosis; D008297:Male; D008476:Mediastinal Cyst / Q000175:diagnosis*; D008875:Middle Aged; D009333:Neck; D013950:Thymus Gland; D014463:Ultrasonography