Babazade Faramarz, Mortazavi Hamed, Jalalian Hamed, Shahvali Ehsan
Department of Oral and Maxillofacial Surgery, Mashhad Dental Faculty, Mashhad, Iran.
J Oral Sci. 2009 Dec;51(4):655-7. doi: 10.2334/josnusd.51.655.
Ectopic thyroid gland is a rare phenomenon that appears most frequently in the cervical midline and very rarely in other sites such as the submandibular region. This article reports a painless, non-tender and firm thyroid tissue mass in the right submandibular region of a 29-year-old female patient. Physicians should consider ectopic thyroid tissue as a differential diagnosis of submandibular swellings and be aware that this ectopic gland is the only functional thyroid tissue in 70% of cases.
异位甲状腺是一种罕见现象，最常出现在颈部中线，很少出现在其他部位，如颌下区。本文报道了一名29岁女性患者右颌下区出现无痛、无压痛且质地坚硬的甲状腺组织肿块。医生应将异位甲状腺组织作为颌下肿胀的鉴别诊断，并意识到在70%的病例中，这种异位腺体是唯一具有功能的甲状腺组织。
