肾细胞癌甲状腺转移一例及文献复习

目的探讨肾细胞癌甲状腺转移的临床表现及影像学特点。方法回顾性分析一例肾细胞癌甲状腺转移患者的相关临床资料及影像学检查,并复习有关文献。结果肾细胞癌甲状腺转移为临床罕见病,发病隐匿,发病机制不明,临床诊断极其困难,明确诊断主要依靠病史、病理组织学及免疫组化检查等。超声声像图主要表现为甲状腺内的局灶性病变,形态不规则,分界清楚,呈实性低回声,无囊状结构,无包膜结构及强回声钙化斑,肿块内血流信号丰富。可出现颈部淋巴结转移及颈内静脉癌栓。结论肾细胞癌甲状腺转移影像学具有一定的特点,但无明显特异性征象,确诊主要依靠病理组织学及免疫组化,如果甲状腺是唯一的转移部位,必须进行甲状腺切除术。

A Case of Thyroid Metastasis in Renal Cell Carcinoma and Literature Review

Objective To investigate the clinical manifestations and imaging features of renal cell carcinoma metastasis in Thyroid gland. Method A case of renal cell carcinoma with thyroid metastasis was analyzed retrospectively. The clinical data, imaging findings and relevant literature were reviewed. Result Thyroid metastasis of renal cell carcinoma is a rare clinical disease, morbidity concealment the pathogenesis is unknown,making Clinical diagnosis extremely difficult.The definite diagnosis mainly depends on medical history, histopathology and immunohistochemistry. Ultrasonography mainly showed focal lesions in thyroid gland, irregular shape, clear demarcation, solid hypoechoic, no cystic structure, capsular structure and strong echo calcification plaque, and increased vascularity. Cervical lymph node metastasis and internal jugular vein cancer thrombus may occur. Conclusion Imaging features of thyroid metastasis in renal cell carcinoma has certain characteristics,but not obvious specific. Diagnosis mainly depends on histopathology and immunohistochemistry. If the thyroid gland is the only metastatic site, thyroidectomy should be performed.