Li Chunyang, Zhang Chengbin, Ma Chao, Wang Yonghui, Duan Quanhong
Department of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong 261041, P.R. China.
Department of Surgery, Hongshagou Town Hospital, Anqiu, Weifang, Shandong 261041, P.R. China.
Exp Ther Med. 2025 Feb 18;29(4):77. doi: 10.3892/etm.2025.12827. eCollection 2025 Apr.
Thyroid hemiagenesis (TH) is a rare, congenital malformation defined as the absence of one thyroid lobe with or without an isthmus. By contrast, medullary thyroid cancer (MTC) is a rare thyroid malignancy, arises from parafollicular C cells. In the current study, a 33-year-old man presented with a small mass on the left side of the neck. Ultrasonography indicated a hyperechoic nodule in the left lobe of the thyroid gland and the right thyroid lobe could not be visualized. The patient underwent fine-needle aspiration cytology and MTC was suspected. The patient underwent total thyroidectomy, bilateral central lymph node dissection and left cervical compartment dissection. L-thyroxine (100 µg/per day) commenced immediately following thyroidectomy. During follow-up (monitored every 3 months), the patient remained healthy with no evidence of recurrence.
甲状腺半侧发育不全（TH）是一种罕见的先天性畸形，定义为一侧甲状腺叶缺如，可伴有或不伴有峡部。相比之下，甲状腺髓样癌（MTC）是一种罕见的甲状腺恶性肿瘤，起源于滤泡旁C细胞。在本研究中，一名33岁男性因颈部左侧出现小肿块就诊。超声检查显示甲状腺左叶有一个高回声结节，右叶无法显示。患者接受了细针穿刺细胞学检查，怀疑为MTC。患者接受了甲状腺全切除术、双侧中央淋巴结清扫术和左侧颈部区域清扫术。甲状腺切除术后立即开始服用左甲状腺素（100μg/天）。在随访期间（每3个月监测一次），患者保持健康，无复发迹象。
