Aköz T, Erdogan B, Ayhan M, Cinar F
Ankara Numune Hospital, Department of Otolaryngology, Turkey.
Rev Laryngol Otol Rhinol (Bord). 1998;119(5):323-5.
We reported a case of a 66 year-old male patient with a mass located in the right submandibular region. Surgical excision of the mass was performed and histologic examination revealed that the tumor was ectopic thyroid tissue. Additionally, imaging studies confirmed that the thyroid gland was found in its normal location and the patient had normal thyroid function testing. In reviewing the literature, we found submandibular thyroid tissue to be a rare entity with only 4 cases described. We discussed embryologic development of the normal thyroid gland and some explanations as to the origins of several forms of ectopic thyroid tissue, including that found in the submandibular region.
我们报告了一例66岁男性患者，其右下颌下区有一肿块。对该肿块进行了手术切除，组织学检查显示肿瘤为异位甲状腺组织。此外，影像学研究证实甲状腺位于正常位置，且患者甲状腺功能测试正常。在查阅文献时，我们发现下颌下甲状腺组织是一种罕见的实体，仅有4例相关报道。我们讨论了正常甲状腺的胚胎发育以及几种异位甲状腺组织，包括下颌下区发现的异位甲状腺组织的起源的一些解释。
