Thyroid Metastasis as the Initial Presentation of an Asymptomatic Clear Cell Renal Carcinoma

• Autor(a) principal: Carmelino, Janine
• Data de Publicação: 2016
• Outros Autores: Tavares, Ana Paula, Crespo, Ana, Coutinho, José Mário, Lázaro, António, Ribeiro, Vasco, Barroso, Eduardo
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
• Texto Completo: https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/7277
• topic: Carcinoma; Renal Cell; Neoplasm Metastasis; Thyroid Neoplasms/secondary.; Carcinoma de Células Renais; Metástase Neoplásica; Neoplasias da Tiróide/secundária.

Introduction: Clear cell renal carcinoma metastases to the thyroid gland are rare and only diagnosable after an immunohistochemistry analysis of the histological sample. The purpose of this article is to report a case of thyroid metastasis as the initial presentation of a clear cell renal carcinoma.Case Report: Male patient with a solid nodule in the left lobe of the thyroid, 5.3 cm in diameter, suspicious of malignancy, for which a total thyroidectomy with central compartment lymphadenectomy was performed. Histology revealed two clear cell renal carcinoma metastases. After evaluation of the kidney, the patient underwent radical nephrectomy four months later.Discussion: What makes this case interesting is that thyroid metastases as the initial presentation of renal cell carcinoma are rare, but if treated early, a ‘double surgical resection’ is possible, leading to a 5 year survival rate of 80%.