Incidental discovery of a left mid-renal mass: Thyroid-like renal cell carcinoma

Follicular renal cell carcinoma of the thyroid type is a new entity, very rare and poorly documented, its diagnosis is based on radiological, histological and immunohistochemical studies and histologically characterized by follicular architecture. In our article we will present a case of a chance discovery of a left mid-renal mass in a 56-year-old man, without clinical manifestations with preservation of general condition. The surgical procedure performed was a left partial nephrectomy. The histological diagnosis of the specimen was thyroid-like renal cell carcinoma.