NCIt synonyms : TLFRCC; TLFCK; Thyroid-Like Follicular Carcinoma of the Kidney;
NCIt definition : An extremely rare type of renal cell carcinoma that histologically resembles thyroid
follicular neoplasms. It is a well-circumscribed mass, characterized by the presence
of thyroid-like follicles that contain eosinophilic, colloid-like material. It is
negative for thyroid transcription factor 1 (TTF-1) and thyroglobulin. The majority
of the reported cases have a low-grade malignant potential. Rare cases with lymph
nodes involvement and distant metastases have also been described.;