Department of Pathology, Yale University School of Medicine, New Haven, CT 06520, USA.
Hum Pathol. 2012 Jan;43(1):134-7. doi: 10.1016/j.humpath.2011.02.025. Epub 2011 Jul 5.
Ectopic salivary gland tissue is common in the head and neck, usually associated with lymph nodes in lateral areas. It is rarely noted in the thyroid gland. Here we report the first case of a pleomorphic adenoma presenting as a midline nodule in the isthmus of thyroid in a 66-year-old man. We propose the possibility of origin in ectopic salivary gland tissue that may have aberrantly migrated with the median anlage from the foramen cecum in the base of the tongue during embryogenesis.
异位唾液腺组织在头颈部很常见，通常与侧方淋巴结相关。在甲状腺中很少见。我们在此报告首例 66 岁男性甲状腺峡部中线结节为多形性腺瘤的病例。我们提出起源于异位唾液腺组织的可能性，该组织可能在胚胎发生过程中随中胚层原基从中舌盲孔异常迁移至舌根部。
