中文摘要：

甲状旁腺腺瘤是原发性甲状旁腺功能亢进症的常见原因之一，常与结节性甲状腺肿同时发生。甲状腺胸腺区甲状腺残余为异位甲状腺的一种，根据与颈部甲状腺的解剖关系分为四级。甲状腺胸腺区甲状腺残余亦可发生结节性甲状腺肿，并与甲状旁腺组织难以区分。本文详细介绍一例甲状旁腺腺瘤合并甲状腺胸腺区甲状腺残余结节性甲状腺肿的诊治，旨在提醒临床医生重视甲状腺胸腺区异位甲状腺组织的病变。

英文摘要：

Parathyroid adenoma is the main cause of primary hyperparathyroidism and often associated with thyroid nodular goiter.Thyrothymic thyroid rest belong to the ectopic thyroids which are classified into 4 grades according to the state of their connection with the proper neck thyroid gland.Thyrothymic thyroid remnant can also develop into nodular goiter and may be difficult to be distinguished from parathyroid adenoma.We present herewith the diagnosis and treatment of a rare case of parathyroid adenoma accompanied by thyrothymic thyroid remnant nodular goiter in order to remind clinicians of the attention to the thyrothymic thyroid remnant disease.