Midline dermoid tumors of the neck.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003884:Dermoid Cyst / Q000175:diagnosis / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006044:Goiter, Nodular / Q000175:diagnosis; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D013955:Thyroglossal Cyst / Q000175:diagnosis; D013965:Thyroidectomy