Case Report Conservative Management for Lingual Thyroid Ectopic Eder Alberto Sigua-Rodriguez, 1 Douglas Rangel Goulart, 1 Luciana Asprino, 1 and Afonso Celso de Moraes Manzano 2 1 Oral and Maxillofacial Surgery Division, Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Campinas, SP, Brazil 2 Department of Head and Neck Surgery, Hospital Santa Casa de Limeira, Limeira, SP, Brazil Correspondence should be addressed to Eder Alberto Sigua-Rodriguez; edersiguaodont@gmail.com Received 25 September 2014; Revised 27 December 2014; Accepted 11 January 2015 Academic Editor: Augusto Casani Copyright © 2015 Eder Alberto Sigua-Rodriguez et al. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Lingual thyroid gland is a rare clinical entity. Te presence of an ectopic thyroid gland located at the base of the tongue may be presented with symptoms like dysphagia, dysphonia, and upper airway obstruction. We are introducing a case of an 8-year-old girl who had lingual thyroid that presented dysphagia and foreign body sensation in the throat. Te diagnostic was reached with clinical examination, thyroid scintigraphy with Tc 99m and ultrasound. A laryngoscopy was performed which confrmed a spherical mass at base of tongue. Investigation should include thyroid function tests. In this case we observed subclinical hypothyroidism. Tere are diferent types of surgical approaches for the treatment of this condition; however, the treatment with Levothyroxine Sodium allowed the stabilization of TSH levels and clinical improvement of symptoms in a follow-up of 2 years. 1. Introduction Ectopic thyroid is an uncommon embryological abnormality characterized by the presence of thyroid tissue in a site other than its usual pretracheal location [1, 2]. Of all ectopic thyroids 90% are found to be lingual [3] It is a rare congenital anomaly appearing with prevalence of 1 : 100.000 [3]. Patients with lingual thyroid tissue usually present with symptoms such as dysphagia, choking, hemorrhage, and dys- pnea and occasionally life-threatening airway obstruction. In addition, malignant transformation of the lingual thyroid has been reported, albeit rarely [4]. For patients with obstructive symptoms, thyroxine replacement should be introduced as initial therapy, to induce glandular shrinkage [5]. If conser- vative treatment fails, surgical removal is necessary [4]. Lingual thyroid is estimated to occur in 0.2 per cent of normal children, being more common in females and on the lef side of the thyroid gland [1]. In this case report, the diagnosis and conservative treatment of this condition are highlighted. 2. Case Report A child of eight years old came to our department with dysphagia and foreign body sensation in the throat. Tese symptoms were present to three months and showing greater intensity every day. She had no history of either past or present thyroid disease. Afer examination, the patient pre- sented a solid, spherical mass with 2 cm of diameter, covered with intact mucosa, located at the base of the tongue. Exam- ination of neck did not reveal cervical lymphadenopathy, the past medical history of the patient was insignifcant, and she was not currently taking any medication. Tyroid scintigraphy with Tc 99m and ultrasound were performed, which confrmed oval mass in the base of tongue, suggestive of ectopic thyroid tissue (Figures 1 and 2). Laryn- goscopy was performed and showed the presence of a mass at the base of the tongue with displacement of the uvula. Tyroid hormone tests showed elevated thyroid- stimulating hormone (TSH = 10.79 (0.4–4.2)) concentrations and normal T4 concentrations (T4 = 0.81 (0.61–1.48)). From the clinical and imaging fndings the diagnostic of ectopic Hindawi Publishing Corporation Case Reports in Otolaryngology Volume 2015, Article ID 265207, 4 pages http://dx.doi.org/10.1155/2015/265207