Lingual thyroid.
D000293:Adolescent; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000175:diagnosis / Q000628:therapy; D005260:Female; D006801:Humans; D013961:Thyroid Gland / Q000002:abnormalities* / Q000196:embryology; D014059:Tongue / Q000002:abnormalities*